# West Vault Mining Announces 51% IRR Pre-Feasibility Study Update for Hasbrouck Gold Project Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc Original source: https://money.tmx.com/en/quote/WVM/news/4573286235985421/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go Publisher: tmx Original announcement: 2023-01-23T13:30:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: West Vault Mining Inc. - Ticker: WVM - Exchange: TSX - Region: Nevada - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Resource update, Metallurgy - Extracted: 2026-08-24 19:00:00 UTC Narrative sentiment: 0.70 · Bullish ## Minestarters Atlas summary West Vault Mining announced an updated Pre-Feasibility Study for its Hasbrouck Gold Project, confirming robust economics with a 51% after-tax IRR and a NPV\(5%\) of US$206 million. The project, located in Nevada, is construction-ready and features proven and probable reserves totaling 44.0 million tons containing 753,000 ounces of gold and 10.5 million ounces of silver. Metallurgical test work indicates a 75% average heap-leach gold recovery. Reasoning: The updated Pre-Feasibility Study confirms robust project economics with a high IRR of 51% and a NPV\(5%\) of US$206 million, building on a construction-ready project with significant gold and silver reserves. While the underlying resource and reserve estimates are largely unchanged from the 2016 PFS, the updated economic parameters provide a positive re-evaluation. - Positive factor: High IRR - Positive factor: Construction-ready - Positive factor: NI 43-101 Compliant - Positive factor: QP/CP Signed - Positive factor: Good gold recovery - Positive factor: Significant contained metal - Negative factor: Resource/reserve estimates largely unchanged from 2016 Facts used in scoring: 25 ## Classification and evidence **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: The Technical Report was prepared by Qualified Persons and Expert Relied Upon under NI 43-101, including Thomas L. Dyer, Jeff Bickel, Mark Jorgensen, Ryan Baker, and Carl Defilippi, who reviewed and approved the information. Evidence · text > Each person is either a "Qualified Person" or an "Expert Relied Upon" under NI 43-101 and has reviewed and approved the information in this news release relevant to the portion of the Technical Report for which they are responsible. **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The Technical Report was prepared in conformance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects. Evidence · text > The Technical Report was authored by RESPEC and was prepared in conformance with National Instrument 43-101 - Standards of Disclosure for Mineral Projects \(" NI 43-101 "\). **PFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component. Why it applies: The document announces the results of an updated Pre-Feasibility Study for the Hasbrouck Gold Project. Evidence · text > West Vault Mining Announces 51% IRR Pre-Feasibility Study Update for Hasbrouck Gold Project **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The Technical Report updates a September 2016 Pre-feasibility Study, including updated Mineral Resource and Mineral Reserve Statements. Evidence · text > The Technical Report updates a September 2016 Pre-feasibility Study \(" 2016 PFS "\) **Proven Reserve** Polarity: positive Definition: Measured Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Proven Mineral Reserves for both the Hasbrouck Mine and the total project. Evidence · table > Proven Context: 6,130 **Probable Reserve** Polarity: positive Definition: Indicated Resource with demonstrated economic viability after applying modifying factors. Why it applies: The document reports Probable Mineral Reserves for the Three Hills Mine, Hasbrouck Mine, and the total project. Evidence · table > Probable Context: 9,653 **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 Hasbrouck Deposit Mineral Resources include a Measured category. Evidence · table > Measured Context: 6,987 **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: Both Hasbrouck and Three Hills Deposits report Indicated Mineral Resources. Evidence · table > Indicated Context: 35,041 **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: Both Hasbrouck and Three Hills Deposits include Inferred Mineral Resources, which are considered speculative. Evidence · table > Inferred Context: 5,161 **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: The metallurgical section explicitly states '75% average heap-leach gold recovery'. Evidence · table > 75% average heap-leach gold recovery Context: Metallurgy **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: An average heap-leach gold recovery of 75% is considered strong for this processing route. Evidence · table > 75% average heap-leach gold recovery Context: Metallurgy **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: The project's geology is described as 'well-understood' with '+600 boreholes' and '13 test programs', implying comprehensive domain coverage. Evidence · table > well-understood, +600 boreholes, all-oxide Context: Geology **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: Cut-off grades are disclosed for both mineral resources \(e.g., 0.007oz AuEq/ton\) and reserves \(e.g., 0.005 oz Au/ton or $5.17/ton GMV\). Evidence · text > 0.007oz AuEq/ton Cutoff ## Extracted facts Stored fact records: 25. Some facts used in scoring do not have a stored record. ## Resource Estimates (25) ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-0) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: measured - Tonnes: 6987000 - Grade: 0.019 - Grade Unit: oz/ton - Contained Metal: 134000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Measured resource for gold at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Measured Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.019 Context: 6,987 ### measured [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-1) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: measured - Tonnes: 6987000 - Grade: 0.39 - Grade Unit: oz/ton - Contained Metal: 2752000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Measured resource for silver at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Measured Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.39 Context: 6,987 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-2) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: indicated - Tonnes: 35041000 - Grade: 0.015 - Grade Unit: oz/ton - Contained Metal: 516000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Indicated resource for gold at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Indicated Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.015 Context: 35,041 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-3) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: indicated - Tonnes: 35041000 - Grade: 0.27 - Grade Unit: oz/ton - Contained Metal: 9404000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Indicated resource for silver at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Indicated Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.27 Context: 35,041 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-4) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: indicated - Tonnes: 42028000 - Grade: 0.015 - Grade Unit: oz/ton - Contained Metal: 651000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Measured and Indicated resource for gold at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Indicated Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.015 Context: 42,028 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-5) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: indicated - Tonnes: 42028000 - Grade: 0.29 - Grade Unit: oz/ton - Contained Metal: 12156000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Measured and Indicated resource for silver at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Indicated Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.29 Context: 42,028 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-6) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: inferred - Tonnes: 5161000 - Grade: 0.011 - Grade Unit: oz/ton - Contained Metal: 56000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Inferred resource for gold at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.011 Context: 5,161 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-7) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: inferred - Tonnes: 5161000 - Grade: 0.19 - Grade Unit: oz/ton - Contained Metal: 986000 - Contained Unit: oz - Cutoff Grade: 0.007 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Inferred resource for silver at Hasbrouck Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.19 Context: 5,161 ### indicated [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-8) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: indicated - Tonnes: 10423000 - Grade: 0.018 - Grade Unit: oz/ton - Contained Metal: 185000 - Contained Unit: oz - Cutoff Grade: 0.005 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Indicated resource for gold at Three Hills Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Indicated Resource - Positive factor: Cut-off Disclosed Evidence · table > 0.018 Context: 10,423 ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-9) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: inferred - Tonnes: 1008000 - Grade: 0.017 - Grade Unit: oz/ton - Contained Metal: 17000 - Contained Unit: oz - Cutoff Grade: 0.005 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Inferred resource for gold at Three Hills Deposit, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Cut-off Disclosed - Negative factor: Inferred Resource Evidence · table > 0.017 Context: 1,008 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-10) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 9653000 - Grade: 0.018 - Grade Unit: oz/ton - Contained Metal: 175000 - Contained Unit: oz - Cutoff Grade: 0.005 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Probable reserve for gold at Three Hills Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.018 Context: 9,653 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-11) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 9653000 - Grade: 0.018 - Grade Unit: oz/ton - Contained Metal: 175000 - Contained Unit: oz - Cutoff Grade: 0.005 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for gold at Three Hills Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.018 Context: 9,653 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-12) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: proven - Tonnes: 6130000 - Grade: 0.021 - Grade Unit: oz/ton - Contained Metal: 126000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Proven reserve for gold at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Proven Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.021 Context: 6,130 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-13) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: proven - Tonnes: 6130000 - Grade: 0.417 - Grade Unit: oz/ton - Contained Metal: 2558000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Proven reserve for silver at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Proven Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.417 Context: 6,130 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-14) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 28239000 - Grade: 0.016 - Grade Unit: oz/ton - Contained Metal: 452000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Probable reserve for gold at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.016 Context: 28,239 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-15) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 28239000 - Grade: 0.281 - Grade Unit: oz/ton - Contained Metal: 7946000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Probable reserve for silver at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.281 Context: 28,239 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-16) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 34370000 - Grade: 0.017 - Grade Unit: oz/ton - Contained Metal: 578000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for gold at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.017 Context: 34,370 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-17) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 34370000 - Grade: 0.306 - Grade Unit: oz/ton - Contained Metal: 10504000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for silver at Hasbrouck Mine, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.306 Context: 34,370 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-18) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: proven - Tonnes: 6130000 - Grade: 0.021 - Grade Unit: oz/ton - Contained Metal: 126000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Proven reserve for gold for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Proven Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.021 Context: 6,130 ### proven [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-19) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: proven - Tonnes: 6130000 - Grade: 0.417 - Grade Unit: oz/ton - Contained Metal: 2558000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Proven reserve for silver for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Proven Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.417 Context: 6,130 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-20) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 37893000 - Grade: 0.017 - Grade Unit: oz/ton - Contained Metal: 627000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Probable reserve for gold for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.017 Context: 37,893 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-21) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 37893000 - Grade: 0.21 - Grade Unit: oz/ton - Contained Metal: 7946000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Probable reserve for silver for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.210 Context: 37,893 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-22) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 44023000 - Grade: 0.017 - Grade Unit: oz/ton - Contained Metal: 753000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for gold for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.017 Context: 44,023 ### probable [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-23) Hasbrouck Gold Project · silver #### Identity - Project: Hasbrouck Gold Project - Commodity: silver - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Resource Data - Category: probable - Tonnes: 44023000 - Grade: 0.239 - Grade Unit: oz/ton - Contained Metal: 10504000 - Contained Unit: oz - Cutoff Grade: 5.17 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: Combined Proven and Probable reserve for silver for the total Hasbrouck Gold Project, part of an updated PFS, but the estimate itself is largely unchanged from the 2016 PFS, leading to low novelty for the numbers. - Positive factor: QP/CP Signed - Positive factor: NI 43-101 Compliant - Positive factor: Probable Reserve - Positive factor: Cut-off Disclosed Evidence · table > 0.239 Context: 44,023 ### Fact 25 [Link to this fact](https://atlas-staging.minestarters.com/news/west-vault-mining-announces-51-irr-pre-feasibility-study-update-for-hasbrouck-go--3b486c83-8244-4287-bae2-b322d35bf5dc#fact-resource-facts-24) Hasbrouck Gold Project · gold #### Identity - Project: Hasbrouck Gold Project - Commodity: gold - Region: usa\_nv - Reported Region: Nevada - Ticker: WVM #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2023-01-23T00:00:00.000Z Reasoning: 75% average heap-leach gold recovery is strong for this processing route, supported by 13 test programs and QP sign-off, contributing positively to project economics. - Positive factor: High Recovery - Positive factor: Heap Leach Route - Positive factor: QP/CP Signed - Positive factor: Multi-Domain Tested Evidence · table > 75% average heap-leach gold recovery Context: Metallurgy ## 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.