# Corvus Gold Identifies New High-Grade Gold Zone and Expands NW Sierra Blanca Target Area, North Bullfrog Project, NV Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282 Original source: https://money.tmx.com/en/quote/KOR/news/71164104/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar Publisher: tmx Original announcement: 2016-01-19T13:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Corvus Gold Inc. - Ticker: KOR - Exchange: TSX - Region: Nevada - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Drill results, Resource update - Extracted: 2026-08-23 19:26:43 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Corvus Gold announced new high-grade gold and silver drill results from the newly discovered NW Sierra Blanca Zone at its North Bullfrog Project in Nevada. The results include 3.05 metres of 4.97 g/t gold and 42.0 g/t silver within a broader 99.06 metres of 0.64 g/t gold and 4.08 g/t silver, expanding the target area and indicating potential for a large new deposit. The company also provided details on existing mineral resources for both mill and heap leach processing, prepared in accordance with NI 43-101. Reasoning: Corvus Gold announced the discovery of a new high-grade gold and silver zone at its North Bullfrog Project, with significant drill intercepts expanding the target area and indicating potential for a large new deposit. The results are supported by robust QA/QC and QP sign-off, although true widths were not reported. - Positive factor: New high-grade gold and silver discovery - Positive factor: Expansion of target area with potential for large new deposit - Positive factor: Discovery adjacent to existing pit design - Positive factor: Comprehensive QA/QC disclosure and QP sign-off - Positive factor: Transparent compositing parameters - Negative factor: True width not reported for drill intercepts Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 78 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: The drill intercept NB-15-282 reported 3.05m at 4.97 g/t gold and 42.0 g/t silver, which is highlighted in the narrative as a new high-grade intercept and exceeds the strong gold grade threshold for open pit mining. Evidence · table > 4.97 Context: 3.05 **Apparent Width Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: The document explicitly states that 'Reported drill intercepts are not true widths' and that 'there is insufficient data with respect to the shape of the mineralization to calculate its true orientation in space.' Evidence · text > Reported drill intercepts are not true widths. At this time, there is insufficient data with respect to the shape of the mineralization to calculate its true orientation in space. **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release details the QA/QC program, including the use of certified standard reference materials, blanks, duplicates, and accredited laboratories \(ALS Chemex, ISO 9001:2000 and ISO 17025:1999\). Evidence · text > Quality control is monitored by the insertion of blind certified standard reference materials and blanks into each sample shipment. All resource sample shipments are sealed and shipped to ALS Chemex in Reno, Nevada , for preparation and then on to ALS Chemex in Reno, Nevada , or Vancouver, B.C. , for assaying. ALS Chemex's quality system complies with the requirements for the International Standards ISO 9001:2000 and ISO 17025:1999. Analytical accuracy and precision are monitored by the analysis of reagent blanks, reference material and replicate samples. Finally, representative blind duplicate samples are forwarded to ALS Chemex and an ISO compliant third party laboratory for additional quality control. **Compositing Transparent** Polarity: positive Definition: Cut-off grade and internal dilution rules are clearly stated for reported intervals. Why it applies: The document clearly states the cut-off grades used for calculating mineralized thickness: 'Mineralized thickness calculated @ 0.10 g/t Au cutoff with internal vein/stockwork intervals calculated @ 1.0 g/t Au cutoff'. Evidence · text > Mineralized thickness calculated @ 0.10 g/t Au cutoff with internal vein/stockwork intervals calculated @ 1.0 g/t Au cutoff **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The announcement highlights that the new discovery 'Expands NW Sierra Blanca Target Area' and indicates 'potential for a large new deposit adjacent to the existing pit design'. Evidence · text > Corvus Gold Identifies New High-Grade Gold Zone and Expands NW Sierra Blanca Target Area **Measured Resource** Polarity: positive Definition: Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves. Why it applies: The document reports a 'measured mineral resource' for both mill and heap leach processing. Evidence · text > The project contains a measured mineral resource of 3.86 Mt at an average grade of 2.55 g/t gold and 19.70 g/t silver **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: The document reports an 'indicated mineral resource' for both mill and heap leach processing. Evidence · text > an indicated mineral resource of 1.81 Mt at an average grade of 1.53 g/t gold, and 10.20 g/t silver **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The document reports an 'inferred resource' for both mill and heap leach processing. Evidence · text > an inferred resource of 1.48 Mt at an average grade of 0.83 g/t gold and 4.26 g/t silver **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The document explicitly states that 'all resource estimates contained in or incorporated by reference in this press release have been prepared in accordance with NI 43-101'. Evidence · text > all resource estimates contained in or incorporated by reference in this press release have been prepared in accordance with NI 43-101 **QP/CP Signed** Polarity: positive Definition: Qualified Person \(QP\) or Competent Person \(CP\) named and signed off — a member of a recognized professional association \(e.g., AusIMM, SME, AIG, P.Geo\) with relevant experience. Why it applies: Jeffrey A. Pontius and Carl E. Brechtel are named as Qualified Persons as defined by National Instrument 43-101 and have approved the disclosure. Evidence · text > Jeffrey A. Pontius \(CPG 11044\), a qualified person as defined by National Instrument 43-101, has supervised the preparation of the scientific and technical information that forms the basis for this news release and has approved the disclosure herein. ... Carl E. Brechtel , \(Nevada PE 008744 and Registered Member 353000 of SME\), a qualified person as defined by National Instrument 43-101, has coordinated execution of the work outlined in this news release and has approved the disclosure herein. **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: The cut-off grades for both mill processing \(0.52 g/t gold\) and heap leach processing \(0.15 g/t\) are clearly stated for the resource estimates. Evidence · text > breakeven cut-off grade of 0.52 g/t gold. ... breakeven cut-off grade of 0.15 g/t. **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The resource estimates are referenced as being from a 'Preliminary Economic Assessment' released in June. Evidence · text > Technical Report and Preliminary Economic Assessment for Combined Mill and Heap Leach Processing at the North Bullfrog Project, Bullfrog Mining District, NYE County, Nevada ' dated June 16, 2015 ## Extracted facts Stored fact records: 78. Some facts used in scoring do not have a stored record. ## Drill Results (78) ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-0) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.34 - Grade Unit: g/t - Intercept: 97.53 m - From: 86.87 m - To: 184.4 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows a long interval of weak gold mineralization, contributing to the overall expansion of the target area, but the grade is low and true width is not reported. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Apparent width only Evidence · table > 0.34 Context: 97.53 ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-1) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.19 - Grade Unit: g/t - Intercept: 97.53 m - From: 86.87 m - To: 184.4 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows a long interval of weak silver mineralization, contributing to the overall expansion of the target area, but the grade is low and true width is not reported. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Apparent width only Evidence · table > 1.19 Context: 97.53 ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-2) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.12 - Grade Unit: g/t - Intercept: 1.52 m - From: 102.11 m - To: 103.63 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows moderate gold grade, contributing to the overall understanding of the new zone, but its limited width and lack of true width reduce its individual materiality. - Positive factor: Moderate grade - Positive factor: Part of new discovery area - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 1.12 Context: 1.52 ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-3) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 2.57 - Grade Unit: g/t - Intercept: 1.52 m - From: 102.11 m - To: 103.63 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows weak silver grade, contributing to the overall understanding of the new zone, but its limited width and low grade reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 2.57 Context: 1.52 ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-4) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.18 - Grade Unit: g/t - Intercept: 1.52 m - From: 123.44 m - To: 124.97 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows moderate gold grade, contributing to the overall understanding of the new zone, but its limited width and lack of true width reduce its individual materiality. - Positive factor: Moderate grade - Positive factor: Part of new discovery area - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 1.18 Context: 1.52 ### NB-15-279 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-5) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-279 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.96 - Grade Unit: g/t - Intercept: 1.52 m - From: 123.44 m - To: 124.97 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows weak silver grade, contributing to the overall understanding of the new zone, but its limited width and low grade reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 0.96 Context: 1.52 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-6) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.44 - Grade Unit: g/t - Intercept: 1.52 m - From: 85.34 m - To: 86.87 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows weak gold mineralization, contributing to the overall understanding of the new zone, but its limited width and low grade reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 0.44 Context: 1.52 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-7) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.2 - Grade Unit: g/t - Intercept: 1.52 m - From: 85.34 m - To: 86.87 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its limited width and very low grade reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only Evidence · table > 0.20 Context: 1.52 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-8) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.18 - Grade Unit: g/t - Intercept: 3.05 m - From: 163.07 m - To: 166.12 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.18 Context: 3.05 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-9) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.17 - Grade Unit: g/t - Intercept: 3.05 m - From: 163.07 m - To: 166.12 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.17 Context: 3.05 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-10) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.15 - Grade Unit: g/t - Intercept: 10.67 m - From: 187.45 m - To: 198.12 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.15 Context: 10.67 ### NB-15-280 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-11) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-280 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.05 - Grade Unit: g/t - Intercept: 10.67 m - From: 187.45 m - To: 198.12 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.05 Context: 10.67 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-12) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.37 - Grade Unit: g/t - Intercept: 3.05 m - From: 134.11 m - To: 137.16 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Low grade - Negative factor: Apparent width only Evidence · table > 0.37 Context: 3.05 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-13) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.33 - Grade Unit: g/t - Intercept: 3.05 m - From: 134.11 m - To: 137.16 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.33 Context: 3.05 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-14) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 3.05 m - From: 160.02 m - To: 163.07 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.13 Context: 3.05 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-15) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.31 - Grade Unit: g/t - Intercept: 3.05 m - From: 160.02 m - To: 163.07 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.31 Context: 3.05 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-16) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 7.62 m - From: 167.64 m - To: 175.26 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.13 Context: 7.62 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-17) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.82 - Grade Unit: g/t - Intercept: 7.62 m - From: 167.64 m - To: 175.26 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.82 Context: 7.62 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-18) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 15.24 m - From: 181.36 m - To: 196.6 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.13 Context: 15.24 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-19) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.48 - Grade Unit: g/t - Intercept: 15.24 m - From: 181.36 m - To: 196.6 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.48 Context: 15.24 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-20) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.28 - Grade Unit: g/t - Intercept: 23.24 m - From: 205.74 m - To: 228.98 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows a long interval of very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.28 Context: 23.24 ### NB-15-281 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-21) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-281 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.53 - Grade Unit: g/t - Intercept: 23.24 m - From: 205.74 m - To: 228.98 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This intercept shows a long interval of very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.53 Context: 23.24 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-22) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 99.06 m - From: 64.01 m - To: 163.07 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:64.01-163.07 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long intercept shows weak gold mineralization with a moderate grade-thickness product, indicating a significant mineralized zone within the new high-grade discovery area, but the grade is weak and true width is not reported. - Positive factor: Long intercept length - Positive factor: Moderate grade-thickness product - Positive factor: Part of new high-grade discovery area - Negative factor: Weak grade - Negative factor: Apparent width only Evidence · table > 0.64 Context: 99.06 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-23) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 4.08 - Grade Unit: g/t - Intercept: 99.06 m - From: 64.01 m - To: 163.07 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:64.01-163.07 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long intercept shows weak silver mineralization, indicating a significant mineralized zone within the new high-grade discovery area, but the grade is weak and true width is not reported. - Positive factor: Long intercept length - Positive factor: Part of new high-grade discovery area - Negative factor: Weak grade - Negative factor: Apparent width only Evidence · table > 4.08 Context: 99.06 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-24) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.69 - Grade Unit: g/t - Intercept: 19.81 m - From: 79.25 m - To: 99.06 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:79.25-99.06 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This significant intercept shows moderate gold grade with a moderate grade-thickness product, indicating a valuable zone within the new high-grade discovery area, but true width is not reported. - Positive factor: Moderate grade - Positive factor: Moderate grade-thickness product - Positive factor: Part of new high-grade discovery area - Negative factor: Apparent width only Evidence · table > 1.69 Context: 19.81 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-25) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 12.33 - Grade Unit: g/t - Intercept: 19.81 m - From: 79.25 m - To: 99.06 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:79.25-99.06 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This significant intercept shows weak silver grade, indicating a valuable zone within the new high-grade discovery area, but true width is not reported. - Positive factor: Part of new high-grade discovery area - Negative factor: Weak grade - Negative factor: Apparent width only Evidence · table > 12.33 Context: 19.81 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-26) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 4.97 - Grade Unit: g/t - Intercept: 3.05 m - From: 88.77 m - To: 83.82 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:88.77-83.82 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows very strong gold grade, representing a bonanza intercept and a key highlight of the new high-grade discovery area, despite its limited width and lack of true width. Note: 'from' depth is greater than 'to' depth, which may indicate a typo in the source document. - Positive factor: Very strong grade - Positive factor: Part of new high-grade discovery area - Positive factor: Highlighted in narrative as high-grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: From depth is greater than to depth \(potential typo\) Evidence · table > 4.97 Context: 3.05 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-27) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 42 - Grade Unit: g/t - Intercept: 3.05 m - From: 88.77 m - To: 83.82 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-282:88.77-83.82 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow intercept shows weak silver grade, contributing to the high-grade discovery area, despite its limited width and lack of true width. Note: 'from' depth is greater than 'to' depth, which may indicate a typo in the source document. - Positive factor: Weak grade - Positive factor: Part of new high-grade discovery area - Positive factor: Highlighted in narrative - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: From depth is greater than to depth \(potential typo\) Evidence · table > 42.0 Context: 3.05 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-28) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.16 - Grade Unit: g/t - Intercept: 35.05 m - From: 167.64 m - To: 202.69 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long intercept shows very weak gold mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.16 Context: 35.05 ### NB-15-282 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-29) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-282 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.61 - Grade Unit: g/t - Intercept: 35.05 m - From: 167.64 m - To: 202.69 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long intercept shows very weak silver mineralization, contributing to the overall understanding of the new zone, but its low grade and lack of true width reduce its individual materiality. - Positive factor: Long intercept length - Positive factor: Part of new discovery area - Negative factor: Very low grade - Negative factor: Apparent width only Evidence · table > 0.61 Context: 35.05 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-30) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.147 - Grade Unit: g/t - Intercept: 4.58 m - From: 77.72 m - To: 82.3 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.147 Context: 4.58 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-31) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.35 - Grade Unit: g/t - Intercept: 4.58 m - From: 77.72 m - To: 82.3 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.35 Context: 4.58 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-32) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.346 - Grade Unit: g/t - Intercept: 9.14 m - From: 99.06 m - To: 108.2 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.346 Context: 9.14 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-33) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.02 - Grade Unit: g/t - Intercept: 9.14 m - From: 99.06 m - To: 108.2 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.02 Context: 9.14 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-34) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.472 - Grade Unit: g/t - Intercept: 210.31 m - From: 112.78 m - To: 323.08 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:112.78-323.08 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This very long, previously released intercept shows weak gold mineralization, providing historical context for the broad mineralized zone, but with low individual materiality and no new information. - Positive factor: Very long intercept length - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.472 Context: 210.31 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-35) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.41 - Grade Unit: g/t - Intercept: 210.31 m - From: 112.78 m - To: 323.08 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:112.78-323.08 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This very long, previously released intercept shows weak silver mineralization, providing historical context for the broad mineralized zone, but with low individual materiality and no new information. - Positive factor: Very long intercept length - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.41 Context: 210.31 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-36) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 3.471 - Grade Unit: g/t - Intercept: 10.66 m - From: 173.74 m - To: 184.4 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:173.74-184.4 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows strong gold grade with a moderate grade-thickness product, indicating a valuable zone, but with no new information and true width not reported. - Positive factor: Strong grade - Positive factor: Moderate grade-thickness product - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 3.471 Context: 10.66 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-37) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 3.59 - Grade Unit: g/t - Intercept: 10.66 m - From: 173.74 m - To: 184.4 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:173.74-184.4 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak silver grade, contributing to the overall understanding of the mineralized zone, but with no new information and true width not reported. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 3.59 Context: 10.66 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-38) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.01 - Grade Unit: g/t - Intercept: 1.52 m - From: 210.31 m - To: 211.84 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:210.31-211.84 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows moderate gold grade, providing historical context but with low individual materiality and no new information. - Positive factor: Moderate grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.01 Context: 1.52 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-39) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.37 - Grade Unit: g/t - Intercept: 1.52 m - From: 210.31 m - To: 211.84 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:210.31-211.84 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows very weak silver grade, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.37 Context: 1.52 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-40) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.09 - Grade Unit: g/t - Intercept: 1.52 m - From: 225.55 m - To: 227.08 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:225.55-227.08 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows moderate gold grade, providing historical context but with low individual materiality and no new information. - Positive factor: Moderate grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.09 Context: 1.52 ### NB-15-267 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-41) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-267 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 2.76 - Grade Unit: g/t - Intercept: 1.52 m - From: 225.55 m - To: 227.08 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-267:225.55-227.08 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows very weak silver grade, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 2.76 Context: 1.52 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-42) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.27 - Grade Unit: g/t - Intercept: 9.15 m - From: 39.62 m - To: 48.77 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.27 Context: 9.15 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-43) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.45 - Grade Unit: g/t - Intercept: 9.15 m - From: 39.62 m - To: 48.77 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.45 Context: 9.15 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-44) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.45 - Grade Unit: g/t - Intercept: 42.67 m - From: 53.34 m - To: 96.01 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-268:53.34-96.01 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows weak gold mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.45 Context: 42.67 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-45) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.61 - Grade Unit: g/t - Intercept: 42.67 m - From: 53.34 m - To: 96.01 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-268:53.34-96.01 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows very weak silver mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.61 Context: 42.67 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-46) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.15 - Grade Unit: g/t - Intercept: 1.52 m - From: 86.87 m - To: 88.39 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-268:86.87-88.39 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows moderate gold grade, providing historical context but with low individual materiality and no new information. - Positive factor: Moderate grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.15 Context: 1.52 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-47) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.51 - Grade Unit: g/t - Intercept: 1.52 m - From: 86.87 m - To: 88.39 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-268:86.87-88.39 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows very weak silver grade, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.51 Context: 1.52 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-48) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.21 - Grade Unit: g/t - Intercept: 4.58 m - From: 108.2 m - To: 112.78 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.21 Context: 4.58 ### NB-15-268 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-49) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-268 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.04 - Grade Unit: g/t - Intercept: 4.58 m - From: 108.2 m - To: 112.78 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.04 Context: 4.58 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-50) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.64 - Grade Unit: g/t - Intercept: 6.09 m - From: 13.72 m - To: 19.81 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.64 Context: 6.09 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-51) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.77 - Grade Unit: g/t - Intercept: 6.09 m - From: 13.72 m - To: 19.81 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.77 Context: 6.09 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-52) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.37 - Grade Unit: g/t - Intercept: 7.62 m - From: 54.86 m - To: 62.48 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.37 Context: 7.62 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-53) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.1 - Grade Unit: g/t - Intercept: 7.62 m - From: 54.86 m - To: 62.48 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.1 Context: 7.62 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-54) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.28 - Grade Unit: g/t - Intercept: 19.82 m - From: 92.96 m - To: 112.78 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-269:92.96-112.78 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows moderate gold grade with a weak grade-thickness product, providing historical context for a mineralized zone, but with no new information and true width not reported. - Positive factor: Moderate grade - Positive factor: Weak grade-thickness product - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.28 Context: 19.82 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-55) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.8 - Grade Unit: g/t - Intercept: 19.82 m - From: 92.96 m - To: 112.78 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-269:92.96-112.78 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak silver grade, providing historical context for a mineralized zone, but with no new information and true width not reported. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.8 Context: 19.82 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-56) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.23 - Grade Unit: g/t - Intercept: 4.57 m - From: 167.64 m - To: 172.21 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.23 Context: 4.57 ### NB-15-269 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-57) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-269 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.5 - Grade Unit: g/t - Intercept: 4.57 m - From: 167.64 m - To: 172.21 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.5 Context: 4.57 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-58) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.35 - Grade Unit: g/t - Intercept: 9.14 m - From: 45.72 m - To: 54.86 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows weak gold mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.35 Context: 9.14 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-59) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.58 - Grade Unit: g/t - Intercept: 9.14 m - From: 45.72 m - To: 54.86 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This previously released intercept shows very weak silver mineralization, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.58 Context: 9.14 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-60) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.43 - Grade Unit: g/t - Intercept: 27.43 m - From: 82.3 m - To: 109.73 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-270:82.3-109.73 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows weak gold mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Weak grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.43 Context: 27.43 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-61) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.47 - Grade Unit: g/t - Intercept: 27.43 m - From: 82.3 m - To: 109.73 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-270:82.3-109.73 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows very weak silver mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.47 Context: 27.43 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-62) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.05 - Grade Unit: g/t - Intercept: 1.52 m - From: 85.34 m - To: 86.86 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-270:85.34-86.86 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows moderate gold grade, providing historical context but with low individual materiality and no new information. - Positive factor: Moderate grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.05 Context: 1.52 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-63) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.02 - Grade Unit: g/t - Intercept: 1.52 m - From: 85.34 m - To: 86.86 m #### Classification - Program: exploration - Sample Type: drill - Group ID: NB-15-270:85.34-86.86 - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This narrow, previously released intercept shows very weak silver grade, providing historical context but with low individual materiality and no new information. - Negative factor: Very low grade - Negative factor: Narrow intercept - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 1.02 Context: 1.52 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-64) North Bullfrog Project · gold #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.29 - Grade Unit: g/t - Intercept: 25.91 m - From: 118.87 m - To: 144.78 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows very weak gold mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.29 Context: 25.91 ### NB-15-270 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-65) North Bullfrog Project · silver #### Identity - Hole ID: NB-15-270 - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.59 - Grade Unit: g/t - Intercept: 25.91 m - From: 118.87 m - To: 144.78 m #### Classification - Program: exploration - Sample Type: drill - Mining Method: open\_pit #### QA/QC - Laboratory: ALS Chemex - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: blanks, standards, duplicates, umpire, check\_assays, reference\_material, replicate\_samples #### Compositing - Cutoff Grade: 0.1 - Cutoff Unit: g/t Au - Dilution Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This long, previously released intercept shows very weak silver mineralization, providing historical context for the mineralized zone, but with low individual materiality and no new information. - Positive factor: Long intercept length - Negative factor: Very low grade - Negative factor: Apparent width only - Negative factor: Previously released data Evidence · table > 0.59 Context: 25.91 ### Fact 67 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-66) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 2.55 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This measured gold resource for mill processing shows a high-grade, high-confidence estimate, compliant with NI 43-101 and signed off by a QP, but the contained metal is weak and it represents previously released data. - Positive factor: High-grade resource - Positive factor: Highest confidence category - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > measured mineral resource of 3.86 Mt at an average grade of 2.55 g/t gold and 19.70 g/t silver, containing 316.5k ounces of gold ### Fact 68 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-67) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 19.7 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This measured silver resource for mill processing shows a marginal grade and weak contained metal, representing a high-confidence estimate but from previously released data. - Positive factor: Highest confidence category - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > 19.70 g/t silver, containing 316.5k ounces of gold and 2,445k ounces of silver ### Fact 69 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-68) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 1.53 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This indicated gold resource for mill processing shows an economic grade estimate, compliant with NI 43-101 and signed off by a QP, but the contained metal is weak and it represents previously released data. - Positive factor: Economic grade resource - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > indicated mineral resource of 1.81 Mt at an average grade of 1.53 g/t gold, and 10.20 g/t silver, containing 89.1k ounces of gold ### Fact 70 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-69) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 10.2 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This indicated silver resource for mill processing shows a marginal grade and weak contained metal, representing a compliant estimate but from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > 10.20 g/t silver, containing 89.1k ounces of gold and 593.6k ounces of silver ### Fact 71 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-70) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.83 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This inferred gold resource for mill processing shows a marginal grade and weak contained metal, representing the lowest confidence category and from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Lowest confidence category - Negative factor: Stale data \(from prior PEA\) Evidence · text > inferred resource of 1.48 Mt at an average grade of 0.83 g/t gold and 4.26 g/t silver, containing 39.5k ounces of gold ### Fact 72 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-71) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 4.26 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.52 - Cutoff Unit: g/t Au #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This inferred silver resource for mill processing shows a marginal grade and weak contained metal, representing the lowest confidence category and from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Lowest confidence category - Negative factor: Stale data \(from prior PEA\) Evidence · text > 4.26 g/t silver, containing 39.5k ounces of gold and 202.7k ounces of silver ### Fact 73 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-72) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.25 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This measured gold resource for heap leach processing shows a marginal grade and weak contained metal, representing a high-confidence estimate but from previously released data. - Positive factor: Highest confidence category - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > measured mineral resource of 0.3 Mt at an average grade of 0.25 g/t gold and 2.76 g/t silver, containing 2.4k ounces of gold ### Fact 74 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-73) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 2.76 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This measured silver resource for heap leach processing shows a marginal grade and weak contained metal, representing a high-confidence estimate but from previously released data. - Positive factor: Highest confidence category - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > 2.76 g/t silver, containing 2.4k ounces of gold and 26.6k ounces of silver ### Fact 75 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-74) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.3 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This indicated gold resource for heap leach processing shows a marginal grade and weak contained metal, representing a compliant estimate but from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > indicated mineral resource of 22.86 Mt at an average grade of 0.30 g/t gold and 0.43 g/t silver, containing 220.5k ounces of gold ### Fact 76 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-75) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.43 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This indicated silver resource for heap leach processing shows a marginal grade and weak contained metal, representing a compliant estimate but from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Stale data \(from prior PEA\) Evidence · text > 0.43 g/t silver, containing 220.5k ounces of gold and 316.1k ounces of silver ### Fact 77 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-76) North Bullfrog Project · gold #### Identity - Project: North Bullfrog Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.19 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This inferred gold resource for heap leach processing shows a marginal grade but moderate contained metal, representing the lowest confidence category and from previously released data. - Positive factor: Moderate contained metal scale - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Lowest confidence category - Negative factor: Stale data \(from prior PEA\) Evidence · text > inferred mineral resource of 176.3 Mt at an average grade of 0.19 g/t gold and 0.67 g/t silver, containing 1,077.4k ounces of gold ### Fact 78 [Link to this fact](https://atlas-staging.minestarters.com/news/corvus-gold-identifies-new-high-grade-gold-zone-and-expands-nw-sierra-blanca-tar--c509bd1e-8618-4c48-84d7-86b93e080282#fact-drill-facts-77) North Bullfrog Project · silver #### Identity - Project: North Bullfrog Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: KOR #### Geometry - Grade: 0.67 - Grade Unit: g/t #### Compositing - Cutoff Grade: 0.15 - Cutoff Unit: g/t #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2016-01-19T00:00:00.000Z Reasoning: This inferred silver resource for heap leach processing shows a marginal grade and weak contained metal, representing the lowest confidence category and from previously released data. - Positive factor: NI 43-101 compliant - Positive factor: QP sign-off - Positive factor: Cut-off grade disclosed - Negative factor: Marginal grade - Negative factor: Weak contained metal scale - Negative factor: Lowest confidence category - Negative factor: Stale data \(from prior PEA\) Evidence · text > 0.67 g/t silver, containing 1,077.4k ounces of gold and 3,799.2k ounces of silver ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.