# i-80 Gold Announces Additional High-Grade Assay Results From Archimedes Underground Including 16.2 g/t Au Over 56.4 Meters; Updates Timing of 2026 Technical Studies Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11 Original source: https://money.tmx.com/en/quote/IAU/news/5068195335516787/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro Publisher: tmx Original announcement: 2026-06-25T21:05:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: i-80 Gold Corp. - Ticker: IAU - Exchange: TSX - Region: northeastern Nevada, USA - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Drill results, Resource update - Extracted: 2026-09-12 06:39:50 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary i-80 Gold announced high-grade gold assay results from infill drilling at its Archimedes Underground Project in Nevada, including 16.2 g/t Au over 56.4 meters. The results extend known mineralization and confirm continuity, supporting the planned start of mining in Q4 2026. The company also noted a delay in feasibility studies for its Granite Creek and Cove underground projects from Q2 to Q3 2026. Reasoning: The drill results demonstrate excellent high-grade gold intercepts over significant widths, extending the known mineralization at Archimedes. This is a strong positive for the project's potential. While technical studies for other projects are delayed, the core Archimedes development remains on track, and the resource estimate, though historical, provides a solid base. - Positive factor: High-grade gold intercepts with significant widths - Positive factor: Drilling extends known mineralization and confirms continuity - Positive factor: Robust QA/QC procedures disclosed - Positive factor: Project development remains on schedule for first gold in Q4 2026 - Negative factor: Delay in feasibility-level technical studies for other projects Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 42 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: Hole iAU26-09 returned 16.2 g/t Au over 56.4 m and iAU26-11 returned 21.9 g/t Au over 20.2 m, which are exceptionally high grades and widths for underground gold deposits. Evidence · text > 16.2 g/t Au over 56.4 m in hole iAU26-09 \(sulfide\) 21.9 g/t Au over 20.2 m in hole iAU26-11 \(sulfide\) **True Width Disclosed** Polarity: positive Definition: Actual thickness perpendicular to structure is stated, not just downhole length. Why it applies: The document states that true widths are estimated between approximately 40%-65% of core width. Evidence · text > True widths are estimated between approximately 40% - 65% of core width. **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Drill results are described as extending the known mineralized area and demonstrating an expansion of mineralization beyond current resource boundaries. Evidence · text > demonstrating significant widths and continuity of high-grade material that extends the known mineralized area **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 mentions MSALABS as an ISO accredited laboratory and details the company's QA/QC program including standards, duplicates, and blanks. Evidence · text > All samples were submitted to MSALABS \(MSA\) of Elko, NV, which is an an ISO9001 and ISO/IEC 17025 accredited laboratory, independent of the Company. Samples submitted through MSA are crushed to 80% passing 2 mm and analyzed using CPA-Au1 \(Au; 500 gram photon assay\). MSA also undertakes their own internal coarse duplicate analysis to ensure proper sample preparation and equipment calibration. i-80 Gold's QA/QC program includes regular insertion of standards, duplicates, and blanks into the sample stream with a stringent review of all results. **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: The drill campaign is explicitly described as an 'infill drill campaign' and 'infill drilling to support mineral reserve estimation'. Evidence · text > completed 2025-2026 infill drill campaign **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The resource estimate includes a significant portion of Inferred Mineral Resources \(4.2 million tonnes\). Evidence · table > Inferred Mineral Resources Context: 4,188 **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: The resource estimate and technical information are stated to be in accordance with National Instrument 43-101. Evidence · text > prepared in accordance with National Instrument 43-101- Standards of Disclosure for Mineral Projects **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 information and resource review were supervised, reviewed, and approved by Paul Chawrun P.Eng., Tyler Hill CPG., and a Qualified Person from Practical Mining LLC. Evidence · text > The technical information contained in this press release has been prepared under the supervision of, and has been reviewed and approved by Paul Chawrun P.Eng., Executive Vice President and Chief Operating Officer, and Tyler Hill CPG., Vice President Geology, for the Company, each of whom are qualified persons within the meaning of NI 43-101 and S-K 1300. ... A Qualified Person and employee of Practical Mining LLC, has reviewed the Ruby Hill Underground mineral resources and material assumptions included in the Ruby Hill Technical Report and confirmed that they remain current as of December 31, 2025. **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 the resource estimate are clearly stated for both the 426 and Ruby Deeps deposits. Evidence · text > Pressure oxidation cutoff grades are 5.06 and 5.48 Au g/t \(0.148 and 0.160 opt\) for the 426 and Ruby Deeps deposits respectively. **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: The document references an existing mineral resource estimate for Archimedes, indicating it is an update or restatement rather than a maiden resource. Evidence · text > Archimedes hosts an Indicated Mineral Resource of 1.8 million tonnes containing 436,000 ounces of gold grading 7.6 grams per tonne and an Inferred Mineral Resource of 4.2 million tonnes containing 988,000 ounces of gold grading 7.3 grams per tonne **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: The mineral resource estimate is explicitly stated as supporting a Preliminary Economic Assessment \(PEA\). Evidence · text > mineral resource estimate used to support the Archimedes preliminary economic assessment **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: The resource estimate referenced has an effective date of December 31, 2025, and was filed on March 31, 2025, making it historical data in this June 2026 release. Evidence · text > As of December 31, 2025, Archimedes hosts an Indicated Mineral Resource of 1.8 million tonnes... \(1\) ... The PEA ... filed on March 31, 2025 ## Extracted facts Stored fact records: 42. Some facts used in scoring do not have a stored record. ## Drill Results (34) ### iAU26-06 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-0) Archimedes Underground · gold #### Identity - Hole ID: iAU26-06 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7.9 - Grade Unit: g/t - Intercept: 9.1 m - From: 107.6 m - To: 116.7 m - Intercept Depth: 107.6 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-06:107.6-116.7 - Mining Method: underground #### Location - Easting: 587367 - Northing: 4375865 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1774 m - Azimuth: 302 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 7.9 Context: 9.1 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-06 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-1) Archimedes Underground · gold #### Identity - Hole ID: iAU26-06 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 6.8 - Grade Unit: g/t - Intercept: 3.8 m - From: 137.8 m - To: 141.7 m - Intercept Depth: 107.6 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-06:137.8-141.7 - Mining Method: underground #### Location - Easting: 587367 - Northing: 4375865 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1774 m - Azimuth: 302 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade, contributing positively to the resource confidence in an underground mining context. - Positive factor: Good gold grade for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 6.8 Context: 3.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-06 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-2) Archimedes Underground · gold #### Identity - Hole ID: iAU26-06 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7.4 - Grade Unit: g/t - Intercept: 6.9 m - From: 157.2 m - To: 164.1 m - Intercept Depth: 107.6 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-06:157.2-164.1 - Mining Method: underground #### Location - Easting: 587367 - Northing: 4375865 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1774 m - Azimuth: 302 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 7.4 Context: 6.9 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-07 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-3) Archimedes Underground · gold #### Identity - Hole ID: iAU26-07 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 16.1 - Grade Unit: g/t - Intercept: 17.6 m - From: 137.2 m - To: 154.8 m - Intercept Depth: 137.2 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-07:137.2-154.8 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 287 ° - Dip: -34 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept is bonanza grade over a significant width, strongly positive for the project's economics and resource confidence. - Positive factor: Exceptional high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 16.1 Context: 17.6 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-07 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-4) Archimedes Underground · gold #### Identity - Hole ID: iAU26-07 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 2.4 - Grade Unit: g/t - Intercept: 19.8 m - From: 154.8 m - To: 174.5 m - Intercept Depth: 137.2 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-07:154.8-174.5 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 287 ° - Dip: -34 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a moderate gold grade over a significant width, contributing to the overall resource. - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 2.4 Context: 19.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-07 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-5) Archimedes Underground · gold #### Identity - Hole ID: iAU26-07 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 14 - Grade Unit: g/t - Intercept: 10.8 m - From: 185.6 m - To: 196.4 m - Intercept Depth: 137.2 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-07:185.6-196.4 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 287 ° - Dip: -34 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a good width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 14.0 Context: 10.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-08 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-6) Archimedes Underground · gold #### Identity - Hole ID: iAU26-08 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7.3 - Grade Unit: g/t - Intercept: 33.1 m - From: 183.5 m - To: 216.6 m - Intercept Depth: 183.5 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-08:183.5-216.6 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1758 m - Azimuth: 5 ° - Dip: -48 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a very significant width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 7.3 Context: 33.1 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-08 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-7) Archimedes Underground · gold #### Identity - Hole ID: iAU26-08 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 9.8 - Grade Unit: g/t - Intercept: 4 m - From: 183.5 m - To: 187.5 m - Intercept Depth: 183.5 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-08:183.5-187.5 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1758 m - Azimuth: 5 ° - Dip: -48 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 9.8 Context: 4.0 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-09 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-8) Archimedes Underground · gold #### Identity - Hole ID: iAU26-09 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 16.2 - Grade Unit: g/t - Intercept: 56.4 m - From: 145.9 m - To: 202.3 m - Intercept Depth: 145.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-09:145.9-202.3 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 281 ° - Dip: -31 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept is exceptionally high-grade over a very significant width, representing a bonanza result that strongly enhances the project's economics and resource confidence. - Positive factor: Bonanza high-grade gold intercept for underground mining - Positive factor: Exceptional width - Positive factor: Infill drilling confirms continuity - Positive factor: Extends known mineralization Evidence · table > 16.2 Context: 56.4 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-11 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-9) Archimedes Underground · gold #### Identity - Hole ID: iAU26-11 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 21.9 - Grade Unit: g/t - Intercept: 20.2 m - From: 181.4 m - To: 201.6 m - Intercept Depth: 181.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-11:181.4-201.6 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 276 ° - Dip: -31 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept is exceptionally high-grade over a significant width, representing a bonanza result that strongly enhances the project's economics and resource confidence. - Positive factor: Bonanza high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity - Positive factor: Extends known mineralization Evidence · table > 21.9 Context: 20.2 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-12 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-10) Archimedes Underground · gold #### Identity - Hole ID: iAU26-12 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 2.4 - Grade Unit: g/t - Intercept: 28.3 m - From: 107.4 m - To: 135.8 m - Intercept Depth: 107.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-12:107.4-135.8 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 355 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a moderate gold grade over a significant width, contributing to the overall resource. - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 2.4 Context: 28.3 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-12 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-11) Archimedes Underground · gold #### Identity - Hole ID: iAU26-12 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 5.2 - Grade Unit: g/t - Intercept: 5.7 m - From: 138.7 m - To: 144.4 m - Intercept Depth: 107.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-12:138.7-144.4 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 355 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: Good gold grade for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 5.2 Context: 5.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-12 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-12) Archimedes Underground · gold #### Identity - Hole ID: iAU26-12 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 9 - Grade Unit: g/t - Intercept: 8.7 m - From: 167.8 m - To: 176.5 m - Intercept Depth: 107.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-12:167.8-176.5 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 355 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 9.0 Context: 8.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-12 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-13) Archimedes Underground · gold #### Identity - Hole ID: iAU26-12 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 10.7 - Grade Unit: g/t - Intercept: 16.6 m - From: 190.1 m - To: 206.7 m - Intercept Depth: 107.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-12:190.1-206.7 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 355 ° - Dip: -55 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a good width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 10.7 Context: 16.6 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-13 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-14) Archimedes Underground · gold #### Identity - Hole ID: iAU26-13 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 2.2 - Grade Unit: g/t - Intercept: 5.2 m - From: 142.9 m - To: 148 m - Intercept Depth: 142.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-13:142.9-148 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 353 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a moderate gold grade over a good width, contributing to the overall resource. - Positive factor: Infill drilling confirms continuity Evidence · table > 2.2 Context: 5.2 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-13 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-15) Archimedes Underground · gold #### Identity - Hole ID: iAU26-13 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 6.6 - Grade Unit: g/t - Intercept: 17.8 m - From: 169.7 m - To: 187.5 m - Intercept Depth: 142.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-13:169.7-187.5 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 353 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 6.6 Context: 17.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-13 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-16) Archimedes Underground · gold #### Identity - Hole ID: iAU26-13 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 11 - Grade Unit: g/t - Intercept: 26.1 m - From: 197.5 m - To: 223.6 m - Intercept Depth: 142.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-13:197.5-223.6 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 353 ° - Dip: -51 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a very significant width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 11.0 Context: 26.1 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-14 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-17) Archimedes Underground · gold #### Identity - Hole ID: iAU26-14 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7 - Grade Unit: g/t - Intercept: 2.4 m - From: 127.7 m - To: 130.1 m - Intercept Depth: 127.7 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-14:127.7-130.1 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 349 ° - Dip: -62 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade, contributing positively to the resource confidence in an underground mining context. - Positive factor: Good gold grade for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 7.0 Context: 2.4 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-15 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-18) Archimedes Underground · gold #### Identity - Hole ID: iAU26-15 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 3 - Grade Unit: g/t - Intercept: 8 m - From: 110.4 m - To: 118.4 m - Intercept Depth: 110.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-15:110.4-118.4 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 344 ° - Dip: -57 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a good gold grade over a good width, contributing positively to the resource confidence in an underground mining context. - Positive factor: Good gold grade for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 3.0 Context: 8.0 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-15 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-19) Archimedes Underground · gold #### Identity - Hole ID: iAU26-15 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 11.1 - Grade Unit: g/t - Intercept: 3.1 m - From: 156.2 m - To: 159.2 m - Intercept Depth: 110.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-15:156.2-159.2 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 344 ° - Dip: -57 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 11.1 Context: 3.1 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-15 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-20) Archimedes Underground · gold #### Identity - Hole ID: iAU26-15 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 8 - Grade Unit: g/t - Intercept: 22.4 m - From: 171 m - To: 193.4 m - Intercept Depth: 110.4 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-15:171-193.4 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 344 ° - Dip: -57 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a very significant width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 8.0 Context: 22.4 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-16 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-21) Archimedes Underground · gold #### Identity - Hole ID: iAU26-16 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7.8 - Grade Unit: g/t - Intercept: 5.2 m - From: 151.7 m - To: 156.9 m - Intercept Depth: 151.7 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-16:151.7-156.9 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 338 ° - Dip: -63 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 7.8 Context: 5.2 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-17 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-22) Archimedes Underground · gold #### Identity - Hole ID: iAU26-17 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 5.4 - Grade Unit: g/t - Intercept: 56.5 m - From: 93.8 m - To: 150.3 m - Intercept Depth: 93.8 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-17:93.8-150.3 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 333 ° - Dip: -56 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong gold grade over an exceptional width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Exceptional width - Positive factor: Infill drilling confirms continuity Evidence · table > 5.4 Context: 56.5 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-17 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-23) Archimedes Underground · gold #### Identity - Hole ID: iAU26-17 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 15 - Grade Unit: g/t - Intercept: 8.8 m - From: 154.8 m - To: 163.6 m - Intercept Depth: 93.8 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-17:154.8-163.6 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 333 ° - Dip: -56 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept is bonanza grade over a good width, strongly positive for the project's economics and resource confidence. - Positive factor: Exceptional high-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 15.0 Context: 8.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-17 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-24) Archimedes Underground · gold #### Identity - Hole ID: iAU26-17 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 3.2 - Grade Unit: g/t - Intercept: 30.8 m - From: 163.6 m - To: 194.5 m - Intercept Depth: 93.8 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-17:163.6-194.5 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 333 ° - Dip: -56 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a good gold grade over a very significant width, contributing to the overall resource. - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 3.2 Context: 30.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-18 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-25) Archimedes Underground · gold #### Identity - Hole ID: iAU26-18 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 6.9 - Grade Unit: g/t - Intercept: 7.7 m - From: 144.5 m - To: 152.2 m - Intercept Depth: 144.5 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-18:144.5-152.2 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 327 ° - Dip: -66 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 6.9 Context: 7.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-19 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-26) Archimedes Underground · gold #### Identity - Hole ID: iAU26-19 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 7.9 - Grade Unit: g/t - Intercept: 3.5 m - From: 136.2 m - To: 139.8 m - Intercept Depth: 136.2 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-19:136.2-139.8 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 320 ° - Dip: -54 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade and width, contributing positively to the resource confidence in an underground mining context. - Positive factor: High-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 7.9 Context: 3.5 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-19 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-27) Archimedes Underground · gold #### Identity - Hole ID: iAU26-19 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 4.5 - Grade Unit: g/t - Intercept: 23.7 m - From: 160.8 m - To: 184.5 m - Intercept Depth: 136.2 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-19:160.8-184.5 - Mining Method: underground #### Location - Easting: 587415 - Northing: 4375965 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1759 m - Azimuth: 320 ° - Dip: -54 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows good gold grade over a significant width, contributing positively to the resource confidence in an underground mining context. - Positive factor: Good gold grade for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 4.5 Context: 23.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-22 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-28) Archimedes Underground · gold #### Identity - Hole ID: iAU26-22 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 8.1 - Grade Unit: g/t - Intercept: 21.6 m - From: 119.9 m - To: 141.5 m - Intercept Depth: 119.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-22:119.9-141.5 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 311 ° - Dip: -42 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold over a significant width, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 8.1 Context: 21.6 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-22 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-29) Archimedes Underground · gold #### Identity - Hole ID: iAU26-22 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 2.2 - Grade Unit: g/t - Intercept: 14.7 m - From: 141.5 m - To: 156.2 m - Intercept Depth: 119.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-22:141.5-156.2 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 311 ° - Dip: -42 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a moderate gold grade over a significant width, contributing to the overall resource. - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 2.2 Context: 14.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-22 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-30) Archimedes Underground · gold #### Identity - Hole ID: iAU26-22 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 10.4 - Grade Unit: g/t - Intercept: 4.8 m - From: 171.2 m - To: 175.9 m - Intercept Depth: 119.9 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-22:171.2-175.9 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 311 ° - Dip: -42 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 10.4 Context: 4.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-23 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-31) Archimedes Underground · gold #### Identity - Hole ID: iAU26-23 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 15.8 - Grade Unit: g/t - Intercept: 6.7 m - From: 123 m - To: 129.8 m - Intercept Depth: 123 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-23:123-129.8 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 322 ° - Dip: -43 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept is bonanza grade over a good width, strongly positive for the project's economics and resource confidence. - Positive factor: Exceptional high-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 15.8 Context: 6.7 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-23 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-32) Archimedes Underground · gold #### Identity - Hole ID: iAU26-23 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 2.8 - Grade Unit: g/t - Intercept: 15.5 m - From: 153.3 m - To: 168.7 m - Intercept Depth: 123 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-23:153.3-168.7 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 322 ° - Dip: -43 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows a good gold grade over a significant width, contributing to the overall resource. - Positive factor: Significant width - Positive factor: Infill drilling confirms continuity Evidence · table > 2.8 Context: 15.5 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ### iAU26-25 [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-drill-facts-33) Archimedes Underground · gold #### Identity - Hole ID: iAU26-25 - Project: Archimedes Underground - Commodity: gold - Region: usa\_nv - Reported Region: usa\_nv - Ticker: IAU #### Geometry - Grade: 11.9 - Grade Unit: g/t - Intercept: 1.8 m - From: 187.5 m - To: 189.3 m - Intercept Depth: 187.5 m #### Classification - Program: resource - Sample Type: drill - Group ID: iAU26-25:187.5-189.3 - Mining Method: underground #### Location - Easting: 587354 - Northing: 4375817 - CRS: NAD83 Zone 11N - EPSG: 26911 - Elevation: 1779 m - Azimuth: 270 ° - Dip: -36 ° - Loc. Confidence: high - Loc. Source: document #### QA/QC - Laboratory: MSALABS \(MSA\) of Elko, NV - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks, duplicates #### Deleterious - Deleterious Flag: No #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This intercept shows strong high-grade gold, positively impacting the resource confidence. - Positive factor: Strong high-grade gold intercept for underground mining - Positive factor: Infill drilling confirms continuity Evidence · table > 11.9 Context: 1.8 #### Tags used in scoring **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: qaqc\_disclosed is true **Cut-off Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Infill Drilling** Polarity: neutral Definition: Confirmatory drilling to raise resource confidence, not new discovery. Why it applies: drill\_program\_type is "resource" ## Resource Estimates (8) ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-34) Archimedes Underground Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: gold - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:3c7604b0b97b07e00cd9 - Deposit or zone: 426 #### Resource Data - Category: indicated - Tonnes: 899000 - Grade: 6.9 - Grade Unit: g/t - Contained Metal: 199 - Contained Unit: koz - Cutoff Grade: 5.06 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated indicated resource for the 426 zone, showing good gold grade and contributing to the overall project confidence, though not new information. - Positive factor: Indicated resource category provides good confidence - Positive factor: Good gold grade for underground mining - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 6.9 Context: 899 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-35) Archimedes Underground Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: silver - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:3c7604b0b97b07e00cd9 - Deposit or zone: 426 #### Resource Data - Category: indicated - Tonnes: 899000 - Grade: 0.8 - Grade Unit: g/t - Contained Metal: 22 - Contained Unit: koz - Cutoff Grade: 5.06 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated indicated resource for the 426 zone, showing a low silver grade, likely a byproduct, and not new information. - Positive factor: Indicated resource category provides good confidence - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Low silver grade - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 0.8 Context: 899 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-36) Archimedes Underground Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: gold - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:8fb00a9b5697d905b41f - Deposit or zone: Ruby Deeps #### Resource Data - Category: indicated - Tonnes: 892000 - Grade: 8.3 - Grade Unit: g/t - Contained Metal: 237 - Contained Unit: koz - Cutoff Grade: 5.48 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated indicated resource for the Ruby Deeps zone, showing good gold grade and contributing to the overall project confidence, though not new information. - Positive factor: Indicated resource category provides good confidence - Positive factor: Good gold grade for underground mining - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 8.3 Context: 892 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### indicated [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-37) Archimedes Underground Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: silver - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:8fb00a9b5697d905b41f - Deposit or zone: Ruby Deeps #### Resource Data - Category: indicated - Tonnes: 892000 - Grade: 2.4 - Grade Unit: g/t - Contained Metal: 69 - Contained Unit: koz - Cutoff Grade: 5.48 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated indicated resource for the Ruby Deeps zone, showing a low silver grade, likely a byproduct, and not new information. - Positive factor: Indicated resource category provides good confidence - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Low silver grade - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 2.4 Context: 892 #### Tags used in scoring **Indicated Resource** Polarity: positive Definition: Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves. Why it applies: category is "indicated" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-38) Archimedes Underground Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: gold - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:a6c8c8ed43400912c6ff - Deposit or zone: 426 #### Resource Data - Category: inferred - Tonnes: 1038000 - Grade: 6.6 - Grade Unit: g/t - Contained Metal: 219 - Contained Unit: koz - Cutoff Grade: 5.06 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated inferred resource for the 426 zone, showing good gold grade but with lower confidence due to its category and being historical information. - Positive factor: Good gold grade for underground mining - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Inferred resource category has lower confidence - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 6.6 Context: 1,038 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-39) Archimedes Underground Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: silver - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:a6c8c8ed43400912c6ff - Deposit or zone: 426 #### Resource Data - Category: inferred - Tonnes: 1038000 - Grade: 1.2 - Grade Unit: g/t - Contained Metal: 40 - Contained Unit: koz - Cutoff Grade: 5.06 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated inferred resource for the 426 zone, showing a low silver grade, likely a byproduct, and not new information. - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Low silver grade - Negative factor: Inferred resource category has lower confidence - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 1.2 Context: 1,038 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-40) Archimedes Underground Project · gold Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: gold - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:ff71539958ca239d8ce1 - Deposit or zone: Ruby Deeps #### Resource Data - Category: inferred - Tonnes: 3150000 - Grade: 7.6 - Grade Unit: g/t - Contained Metal: 769 - Contained Unit: koz - Cutoff Grade: 5.48 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated inferred resource for the Ruby Deeps zone, showing good gold grade but with lower confidence due to its category and being historical information. - Positive factor: Good gold grade for underground mining - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Inferred resource category has lower confidence - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 7.6 Context: 3,150 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ### inferred [Link to this fact](https://atlas-extractions.minestarters.com/news/i-80-gold-announces-additional-high-grade-assay-results-from-archimedes-undergro--06834c54-c111-4cb8-b119-4986a651ac11#fact-resource-facts-41) Archimedes Underground Project · silver Historical result Needs review: historical\_restatement #### Identity - Project: Archimedes Underground Project - Commodity: silver - Region: usa\_nv - Reported Region: northeastern Nevada, USA - Ticker: IAU #### Resource scope - Estimate type: resource - Reporting standards: ni\_43\_101, sec\_sk1300 - QP Signed: Yes - Qualified person names: Paul Chawrun P.Eng., Tyler Hill CPG., Practical Mining LLC employee - Resource group id: resource:ff71539958ca239d8ce1 - Deposit or zone: Ruby Deeps #### Resource Data - Category: inferred - Tonnes: 3150000 - Grade: 2.4 - Grade Unit: g/t - Contained Metal: 246 - Contained Unit: koz - Cutoff Grade: 5.48 - Cutoff Unit: g/t Au #### Prior Estimate - Resource Date: 2025-12-31 #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes - Historical Source Date: 2025-12-31T00:00:00.000Z #### Dates - Event date: 2026-06-25T00:00:00.000Z Reasoning: This is a restated inferred resource for the Ruby Deeps zone, showing a low silver grade, likely a byproduct, and not new information. - Positive factor: Compliant with NI 43-101 and S-K 1300 - Negative factor: Low silver grade - Negative factor: Inferred resource category has lower confidence - Negative factor: This is a restatement of a prior estimate, not new information Evidence · table > 2.4 Context: 3,150 #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **Cut-off Disclosed** Polarity: positive Definition: Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison. Why it applies: cutoff\_grade is stated **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: qp\_signed is true **NI 43-101 Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with NI 43-101 \(Canada\) — high reporting standard. Why it applies: reporting\_standards includes ni\_43\_101 **Resource Update** Polarity: neutral Definition: Revised estimate for an existing resource — compare to prior to assess progress. Why it applies: the release compares against a previous estimate **PEA-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study. Why it applies: the release names the study this estimate supports **DFS-Supporting** Polarity: neutral Definition: Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence. Why it applies: the release names the study this estimate supports ## 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.