# GR Silver Mining Drills Wide Silver Intercepts at San Marcial: SMS25-08 Returned 19.9 m at 250 g/t AgEq\*, Including 1.3 m at 954 g/t AgEq and a New Gold-Silver Mineralized Vein of 1.0 m at 1,685 g/t AgEq

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/gr-silver-mining-drills-wide-silver-intercepts-at-san-marcial-sms25-08-returned--4accba1e-b649-434f-8ceb-3e34fb7a360f

Original source: https://finance.yahoo.com/news/gr-silver-mining-drills-wide-100000085.html

Publisher: yahoo\_press

Original announcement: 2025-08-21T10:00:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- Company: GR Silver Mining Ltd.

- Ticker: GRSL

- Exchange: TSXV

- Region: Sinaloa, Mexico

- Primary commodity: Silver

- Secondary commodities: Gold

- Document categories: Drill results

- Extracted: 2026-08-21 07:25:48 UTC

Narrative sentiment: 0.90 · Bullish

## Minestarters Atlas summary

GR Silver Mining reported high-grade silver-equivalent intercepts from its San Marcial Area in Mexico. Specifically, hole SMS25-08 returned 19.9 m at 250 g/t AgEq, including a high-grade 1.3 m sub-interval and the discovery of a new gold-silver mineralized vein.

Reasoning: The drill hole SMS25-08 returned an exceptional silver-equivalent intercept and identified a new mineralized vein, demonstrating successful step-out exploration.

- Positive factor: High-grade silver intercepts

- Positive factor: Discovery of new mineralized vein

- Positive factor: Step-out drilling success

Facts used in scoring: 3

## Classification and evidence

**Step-Out Extension**

Polarity: positive

Definition: Mineralization extended beyond the previously known limit.

Why it applies: The results are from an ongoing Step-Out Drilling Program adjacent to the 2023 NI 43-101 resource.

Evidence · text

> ongoing Step-Out Drilling Program \(Step-Out Drilling\) adjacent to the 2023 NI 43-101 mineral resource

## Extracted facts

Stored fact records: 3. Some facts used in scoring do not have a stored record.

## Drill Results (3)

### SMS25-08

[Link to this fact](https://atlas-staging.minestarters.com/news/gr-silver-mining-drills-wide-silver-intercepts-at-san-marcial-sms25-08-returned--4accba1e-b649-434f-8ceb-3e34fb7a360f#fact-drill-facts-0)

Plomosas Project · silver

Needs review: ungrounded

#### Identity

- Hole ID: SMS25-08
- Project: Plomosas Project
- Commodity: silver
- Region: mexico
- Reported Region: Sinaloa, Mexico
- Ticker: GRSL

#### Geometry

- Grade: 250
- Grade Unit: g/t AgEq
- Intercept: 19.9 m

#### Classification

- Program: exploration
- Sample Type: drill
- Group ID: SMS25-08:0-19.9

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2025-08-21T00:00:00.000Z

Reasoning: 19.9 m at 250 g/t AgEq is a strong intercept for silver exploration.

- Positive factor: Strong silver-equivalent grade

Evidence · text

> SMS25-08 Returned 19.9 m at 250 g/t AgEq\*

### SMS25-08

[Link to this fact](https://atlas-staging.minestarters.com/news/gr-silver-mining-drills-wide-silver-intercepts-at-san-marcial-sms25-08-returned--4accba1e-b649-434f-8ceb-3e34fb7a360f#fact-drill-facts-1)

Plomosas Project · silver

Needs review: ungrounded

#### Identity

- Hole ID: SMS25-08
- Project: Plomosas Project
- Commodity: silver
- Region: mexico
- Reported Region: Sinaloa, Mexico
- Ticker: GRSL

#### Geometry

- Grade: 954
- Grade Unit: g/t AgEq
- Intercept: 1.3 m

#### Classification

- Program: exploration
- Sample Type: drill
- Group ID: SMS25-08:0-19.9

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2025-08-21T00:00:00.000Z

Reasoning: 954 g/t AgEq is an exceptionally high-grade sub-interval.

- Positive factor: Bonanza grade intercept

Evidence · text

> Including 1.3 m at 954 g/t AgEq

### SMS25-08

[Link to this fact](https://atlas-staging.minestarters.com/news/gr-silver-mining-drills-wide-silver-intercepts-at-san-marcial-sms25-08-returned--4accba1e-b649-434f-8ceb-3e34fb7a360f#fact-drill-facts-2)

Plomosas Project · silver

Needs review: ungrounded

#### Identity

- Hole ID: SMS25-08
- Project: Plomosas Project
- Commodity: silver
- Region: mexico
- Reported Region: Sinaloa, Mexico
- Ticker: GRSL

#### Geometry

- Grade: 1685
- Grade Unit: g/t AgEq
- Intercept: 1 m

#### Classification

- Program: exploration
- Sample Type: drill
- Group ID: SMS25-08:0-19.9

#### Review

- Needs Review: Yes
- Review Reason: ungrounded
- Interp. Status: scored
- Historical: No

#### Dates

- Event date: 2025-08-21T00:00:00.000Z

Reasoning: 1.0 m at 1,685 g/t AgEq represents a new gold-silver mineralized vein discovery.

- Positive factor: Bonanza grade intercept

- Positive factor: New mineralized vein discovery

Evidence · text

> New Gold-Silver Mineralized Vein of 1.0 m at 1,685 g/t AgEq

## 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.