Corvus Gold Begins Phase II Exploration Drill Program, North Bullfrog Project, Nevada
Original announcement by tmx on
- Company
- Corvus Gold Inc.
- Ticker
- KOR
- Exchange
- TSX
- Region
- Nevada
- Primary commodity
- Gold
- Secondary commodities
- Silver, Mercury
- Document categories
- Drill results, Resource update
- Extracted
- 2026-08-23 19:20:54 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Corvus Gold has commenced an 8,000-metre Phase II RC drill program at the North Bullfrog Project in Nevada, targeting resource expansion and new discoveries. The announcement also provides a comprehensive summary of the project's existing NI 43-101 compliant mineral resources for both mill and heap leach processing.
Reasoning: The company is launching a significant 8,000m drill program to expand existing high-grade resources and test new district-scale targets, supported by a substantial multi-category mineral resource.
Positive factors
- Expansion of exploration program
- Large existing resource base
- High-grade discovery potential in new zones
Negative factors
- Mercury values noted in some intercepts
Facts used in scoring: 15

Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release details specific QA/QC protocols including blind standards, blanks, and use of ALS Chemex.
Evidence · text
“Quality control is monitored by the insertion of blind certified standard reference materials and blanks”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The resource estimates are stated to be 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 Signedpositive
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 who have approved the disclosure.
Evidence · text
“Jeffrey A. Pontius (CPG 11044), a qualified person... has supervised the preparation... and has approved the disclosure”
Extracted facts
Stored fact records: 15. Some facts used in scoring do not have a stored record.
Drill Results (15)
NB-13-366goldGrade: 1.03Grade Unit: g/tIntercept: 20 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- NB-13-366
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 1.03
- Grade Unit
- g/t
- Intercept
- 20 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-01-09T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical intercept mentioned as part of context for new drilling.
Positive factors
- Consistent grade
Evidence · text
“20m of 1.03 g/t Au”
NB-13-366goldGrade: 1.26Grade Unit: g/tIntercept: 17.5 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- NB-13-366
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 1.26
- Grade Unit
- g/t
- Intercept
- 17.5 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-01-09T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical intercept mentioned as part of context for new drilling.
Positive factors
- Consistent grade
Evidence · text
“17.5m @ 1.26 g/t Au”
Rhyolite VeingoldGrade: 3.3Grade Unit: g/tIntercept: 11.3 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- Rhyolite Vein
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 3.3
- Grade Unit
- g/t
- Intercept
- 11.3 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-09-04T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical high-grade intercept cited as context.
Positive factors
- Strong grade
Evidence · text
“Rhyolite Vein 11.3m @ 3.3 g/t Au”
Fact 4goldGrade: 2.55Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 2.55
- Grade Unit
- g/t
Compositing
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Part of the core mill-process resource.
Positive factors
- Measured category
- Strong grade
Evidence · text
“measured mineral resource of 3.86 Mt at an average grade of 2.55 g/t gold”
Fact 5silverGrade: 19.7Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 19.7
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in measured resource.
Positive factors
- Significant silver content
Evidence · text
“19.70 g/t silver, containing ... 2,445k ounces of silver”
Fact 6goldGrade: 1.53Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 1.53
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Part of the mill-process resource.
Positive factors
- Indicated category
Evidence · text
“indicated mineral resource of 1.81 Mt at an average grade of 1.53 g/t gold”
Fact 7silverGrade: 10.2Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 10.2
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in indicated resource.
Evidence · text
“10.20 g/t silver, containing ... 593.6k ounces of silver”
Fact 8goldGrade: 0.83Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 0.83
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Lower confidence category.
Negative factors
- Inferred category
Evidence · text
“inferred resource of 1.48 Mt at an average grade of 0.83 g/t gold”
Fact 9silverGrade: 4.26Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 4.26
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in inferred resource.
Negative factors
- Inferred category
Evidence · text
“4.26 g/t silver, containing ... 202.7k ounces of silver”
Fact 10goldGrade: 0.25Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- 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
- 2015-08-11T00:00:00.000Z
Reasoning: Part of the heap leach process resource.
Negative factors
- Low grade
Evidence · text
“measured mineral resource of 0.3 Mt at an average grade of 0.25 g/t gold”
Fact 11silverGrade: 2.76Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 2.76
- Grade Unit
- g/t
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in measured heap leach resource.
Evidence · text
“2.76 g/t silver, containing ... 26.6k ounces of silver”
Fact 12goldGrade: 0.3Grade Unit: %View all detailsHide details
Identity
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 0.3
- Grade Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Large tonnage indicated resource for heap leach.
Positive factors
- Large tonnage
Negative factors
- Low grade
Evidence · text
“indicated mineral resource of 22.86 Mt at an average grade of 0.30 g/t gold”
Fact 13silverGrade: 0.43Grade Unit: %View all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 0.43
- Grade Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in indicated heap leach resource.
Evidence · text
“0.43 g/t silver, containing ... 316.1k ounces of silver”
Fact 14goldGrade: 0.19Grade Unit: %View all detailsHide details
Identity
- Commodity
- gold
- Ticker
- KOR
Geometry
- Grade
- 0.19
- Grade Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Extremely large but low-grade inferred resource for heap leach.
Positive factors
- Massive tonnage
Negative factors
- Inferred category
- Very low grade
Evidence · text
“inferred mineral resource of 176.3 Mt at an average grade of 0.19 g/t gold”
Fact 15silverGrade: 0.67Grade Unit: %View all detailsHide details
Identity
- Commodity
- silver
- Ticker
- KOR
Geometry
- Grade
- 0.67
- Grade Unit
- %
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Byproduct silver in inferred heap leach resource.
Positive factors
- Massive tonnage
Evidence · text
“0.67 g/t silver, containing ... 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.