# 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-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1

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, Other

- Extracted: 2026-08-20 18:59:33 UTC

Narrative sentiment: 0.80 · Bullish

## Minestarters Atlas summary

Pinnacle Silver and Gold Corp. has reported high-grade gold and silver channel samples 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 significant mineralization continuity and support upcoming surface drilling programs.

Reasoning: High-grade gold and silver channel samples from newly opened historic workings demonstrate significant vertical and strike continuity in a low-sulphidation epithermal system.

- Positive factor: high-grade intercepts

- Positive factor: vertical continuity demonstrated

- Positive factor: QA/QC disclosed

- Positive factor: epithermal deposit type

- Negative factor: channel sampling is limited to accessible workings

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 and 511 g/t Ag significantly exceeds deposit-type norms.

Evidence · text

> including 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 certified reference materials, blanks, and ISO 17025 accredited lab \(SGS\).

Evidence · text

> The lab is accredited to ISO/IEC 17025:2017.

## 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-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-08-04T00:00:00.000Z

Reasoning: 10.76 g/t Au over 1.3m is a strong intercept for an epithermal system.

- Positive factor: strong grade for epithermal

Evidence · text

> assays up to 10.76 g/t Au and 215 g/t Ag over 1.3 metres

### Fact 2

[Link to this fact](https://atlas-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-08-04T00:00:00.000Z

Reasoning: 215 g/t Ag accompanies high gold grades in the same interval.

- Positive factor: strong silver grade

Evidence · text

> assays up to 10.76 g/t Au and 215 g/t Ag over 1.3 metres

### Fact 3

[Link to this fact](https://atlas-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### 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 this deposit type.

- Positive factor: bonanza grade

Evidence · text

> including 26.1 g/t Au and 511 g/t Ag over 0.50 metres

### Fact 4

[Link to this fact](https://atlas-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-08-04T00:00:00.000Z

Reasoning: 511 g/t Ag is an exceptional grade for this deposit type.

- Positive factor: bonanza grade

Evidence · text

> including 26.1 g/t Au and 511 g/t Ag over 0.50 metres

### Fact 5

[Link to this fact](https://atlas-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-08-04T00:00:00.000Z

Reasoning: 5.41 g/t Au is a moderate grade intercept.

- Positive factor: moderate grade

Evidence · text

> 5.41 g/t Au and 230 g/t Ag over 0.80 metres in the South Raise

### Fact 6

[Link to this fact](https://atlas-staging.minestarters.com/news/pinnacle-reopens-additional-historic-mine-workings-at-el-potrero-and-samples-up--faa9280f-a45d-4764-bfc5-fab291eb31e1#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

- Sample Type: channel

#### Review

- Needs Review: No
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2026-08-04T00:00:00.000Z

Reasoning: 230 g/t Ag accompanies moderate gold grades.

- Positive factor: moderate grade

Evidence · text

> 5.41 g/t Au and 230 g/t Ag over 0.80 metres in the South Raise

## 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.