# Pinnacle Reopens Additional Historic Mine Workings at El Potrero and Samples up to 26.1 g/t Au and 511 g/t Ag Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b Original source: https://money.tmx.com/en/quote/PINN/news/7450951386391650/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up- Publisher: tmx Original announcement: 2026-08-04T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Pinnacle Silver and Gold Corp. - Ticker: PINN - Exchange: TSX - Region: Durango, Mexico - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Drill results - Extracted: 2026-09-12 18:32:57 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Pinnacle Silver and Gold Corp. has reported high-grade gold and silver channel sampling from newly accessible historic mine workings at the El Potrero project in Mexico. The results, including up to 26.1 g/t Au and 511 g/t Ag, demonstrate vertical continuity of mineralization within the Dos de Mayo vein system. Reasoning: Significant high-grade gold and silver intercepts from new underground channel sampling, demonstrating vertical continuity in a known epithermal system. - Positive factor: High-grade intercepts - Positive factor: Vertical continuity demonstrated - Positive factor: QA/QC disclosed - Positive factor: Step-out extension Facts used in scoring: 6 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: 26.1 g/t Au is exceptionally high for an epithermal system. Evidence · text > 26.1 g/t Au and 511 g/t Ag over 0.50 metres **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: Release details QA/QC procedures including certified lab \(SGS\), standards, and blanks. Evidence · text > This has included common industry QA/QC procedures to monitor the quality of the assay database, including inserting certified reference material samples and blank samples **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: New workings extend mineralization up dip and along strike to the northwest. Evidence · text > The newly accessible workings... extend approximately 93 metres along the northwest strike of the Dos de Mayo vein ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Drill Results (6) ### Fact 1 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-0) El Potrero · gold #### Identity - Project: El Potrero - Commodity: gold - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 10.76 - Grade Unit: g/t - Intercept: 1.3 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Mining Method: underground #### Location - Location: Dos de Mayo Norte - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: Solid gold grade over a 1.3m interval in an epithermal setting. - Positive factor: Strong grade for epithermal system Evidence · text > assays up to 10.76 g/t Au and 215 g/t Ag over 1.3 metres #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ### Fact 2 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-1) El Potrero · silver #### Identity - Project: El Potrero - Commodity: silver - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 215 - Grade Unit: g/t - Intercept: 1.3 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Group ID: null:null-null - Mining Method: underground #### Location - Location: Dos de Mayo Norte - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: Significant silver grade accompanying the gold intercept. - Positive factor: Strong silver grade Evidence · text > 10.76 g/t Au and 215 g/t Ag over 1.3 metres #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ### Fact 3 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-2) El Potrero · gold #### Identity - Project: El Potrero - Commodity: gold - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 26.1 - Grade Unit: g/t - Intercept: 0.5 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Group ID: null:null-null - Mining Method: underground #### Location - Location: Dos de Mayo Norte - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: 26.1 g/t Au is an exceptional grade for an epithermal system. - Positive factor: Bonanza Intercept Evidence · text > 26.1 g/t Au and 511 g/t Ag over 0.50 metres #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ### Fact 4 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-3) El Potrero · silver #### Identity - Project: El Potrero - Commodity: silver - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 511 - Grade Unit: g/t - Intercept: 0.5 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Group ID: null:null-null - Mining Method: underground #### Location - Location: Dos de Mayo Norte - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: Very high silver grade in a sub-meter interval. - Positive factor: Bonanza Intercept Evidence · text > 26.1 g/t Au and 511 g/t Ag over 0.50 metres #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ### Fact 5 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-4) El Potrero · gold #### Identity - Project: El Potrero - Commodity: gold - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 5.41 - Grade Unit: g/t - Intercept: 0.8 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Group ID: null:null-null - Mining Method: underground #### Location - Location: South Raise - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: Good gold grade in a narrow interval. - Positive factor: Strong grade Evidence · text > 5.41 g/t Au and 230 g/t Ag over 0.80 metres in the South Raise #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ### Fact 6 [Link to this fact](https://atlas-extractions.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--94a2c26c-320e-4055-962f-7baf1ddcfc3b#fact-drill-facts-5) El Potrero · silver #### Identity - Project: El Potrero - Commodity: silver - Region: mexico - Reported Region: Durango, Mexico - Ticker: PINN #### Geometry - Grade: 230 - Grade Unit: g/t - Intercept: 0.8 m #### Classification - Deposit Type: epithermal - Program: exploration - Sample Type: channel - Group ID: null:null-null - Mining Method: underground #### Location - Location: South Raise - Loc. Source: document #### QA/QC - Laboratory: SGS - QA/QC Disclosed: Yes - Lab Certified: Yes - QP Signed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-08-04T00:00:00.000Z Reasoning: Significant silver grade in a narrow interval. - Positive factor: Strong silver grade Evidence · text > 5.41 g/t Au and 230 g/t Ag over 0.80 metres in the South Raise #### 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 **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: proximity is offered as the value premise: "About the Potrero Property El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies with" ## 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.