Pinnacle Confirms High-Grade Mineralization in Underground Drilling at El Potrero with up to 58.2 g/t Au and 631 g/t Ag
Original announcement by investingnews on
- Company
- Pinnacle Silver and Gold Corp.
- Ticker
- PINN
- Exchange
- TSXV
- Region
- Durango, Mexico
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Drill results
- Extracted
- 2026-09-09 12:19:59 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Pinnacle Silver and Gold Corp. has confirmed high-grade gold-silver mineralization at the El Potrero project in Mexico through underground drilling. Recent results from hole EPUG26068 include a high-grade intercept of 58.2 g/t Au and 631 g/t Ag over 0.41 metres, demonstrating continuity along the Dos de Mayo vein.
Reasoning: The drilling confirmed high-grade continuity and extended mineralization at the Pinos Cuates mine, including a bonanza-grade intercept.
Positive factors
- High-grade gold and silver intercepts
- Confirmed strike continuity of mineralization
- Step-out/follow-up drilling successful
- QA/QC protocols disclosed
- Bonanza grade intercept (58.2 g/t Au)
Facts used in scoring: 6
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 58.2 g/t Au is exceptionally high for an epithermal system.
Evidence · text
“returned 58.2 g/t Au and 631 g/t Ag over 0.41 metres”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release details lab (SGS), accreditation (ISO 17025), and specific QA/QC methods (blanks, standards).
Evidence · text
“including inserting certified reference material samples and blank samples”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling confirmed and extended previously announced mineralization.
Evidence · text
“confirmed and extended the previously announced high-grade gold-silver mineralization”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a mill_cil route ("CIL")
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Drill Results (6)
EPUG26035El Potrero · goldGrade: 9.69Grade Unit: g/tIntercept: 13.18 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- EPUG26035
- Project
- El Potrero
- Commodity
- gold
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 9.69
- Grade Unit
- g/t
- Intercept
- 13.18 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26035:0-13.18
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-18T00:00:00.000Z
Dates
- Event date
- 2026-09-09T00:00:00.000Z
Reasoning: This is a restatement of a previously announced intercept from August 18, 2026.
Positive factors
- Strong grade and width
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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"
EPUG26035El Potrero · silverGrade: 143Grade Unit: g/tIntercept: 13.18 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- EPUG26035
- Project
- El Potrero
- Commodity
- silver
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 143
- Grade Unit
- g/t
- Intercept
- 13.18 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26035:0-13.18
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-18T00:00:00.000Z
Dates
- Event date
- 2026-09-09T00:00:00.000Z
Reasoning: This is a restatement of a previously announced intercept from August 18, 2026.
Positive factors
- Strong silver grade
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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"
EPUG26068El Potrero · goldGrade: 6.19Grade Unit: g/tIntercept: 10.89 mView all detailsHide details
Identity
- Hole ID
- EPUG26068
- Project
- El Potrero
- Commodity
- gold
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 6.19
- Grade Unit
- g/t
- Intercept
- 10.89 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26068:0-10.89
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- 2026-09-09T00:00:00.000Z
Reasoning: New follow-up drilling intersected a well-mineralized section, confirming continuity of the vein.
Positive factors
- Confirms continuity
- Strong grade
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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"
EPUG26068El Potrero · silverGrade: 90Grade Unit: g/tIntercept: 10.89 mView all detailsHide details
Identity
- Hole ID
- EPUG26068
- Project
- El Potrero
- Commodity
- silver
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 90
- Grade Unit
- g/t
- Intercept
- 10.89 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26068:0-10.89
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- 2026-09-09T00:00:00.000Z
Reasoning: New follow-up drilling intersected a well-mineralized section, confirming continuity of the vein.
Positive factors
- Strong silver grade
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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"
EPUG26068El Potrero · goldGrade: 58.2Grade Unit: g/tIntercept: 0.41 mView all detailsHide details
Identity
- Hole ID
- EPUG26068
- Project
- El Potrero
- Commodity
- gold
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 58.2
- Grade Unit
- g/t
- Intercept
- 0.41 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26068:0-0.41
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- 2026-09-09T00:00:00.000Z
Reasoning: Extremely high-grade gold intercept within the vein.
Positive factors
- Bonanza grade intercept
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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"
EPUG26068El Potrero · silverGrade: 631Grade Unit: g/tIntercept: 0.41 mView all detailsHide details
Identity
- Hole ID
- EPUG26068
- Project
- El Potrero
- Commodity
- silver
- Region
- mexico
- Reported Region
- mexico
- Ticker
- PINN
Geometry
- Grade
- 631
- Grade Unit
- g/t
- Intercept
- 0.41 m
Classification
- Deposit Type
- epithermal
- Program
- resource
- Sample Type
- drill
- Group ID
- EPUG26068:0-0.41
- Mining Method
- underground
Location
- Location
- Dos de Mayo vein
- 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
- 2026-09-09T00:00:00.000Z
Reasoning: Extremely high-grade silver intercept within the vein.
Positive factors
- Bonanza grade intercept
Tags used in scoring
QA/QC Disclosedpositive
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 Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
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.