HER-25-25 Intersects Margins of a New Blind Copper Porphyry System at the Southern Flats Zone, Hercules Project, Idaho
Original announcement by tmx on
- Company
- Hercules Metals Corp.
- Ticker
- BIG
- Exchange
- TSX
- Region
- Idaho
- Primary commodity
- Copper
- Secondary commodities
- Molybdenum, Silver, Gold
- Document categories
- Drill results
- Extracted
- 2026-09-13 14:36:46 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Hercules Metals Corp. has reported drill results from hole HER-25-25 at the Hercules Project in Idaho, intersecting the margins of a new copper porphyry system. The hole returned a significant intercept of 176.78 m at 0.56% Cu and 0.66% CuEq, with step-out drilling currently underway to target the core of a large MT conductivity anomaly.
Reasoning: The drill hole HER-25-25 successfully identified the margins of a new porphyry system, with grades and alteration zoning suggesting a high-grade core exists nearby, supported by a large geophysical anomaly.
Positive factors
- Step-out drilling successfully intersected margins of a new porphyry system
- Increasing alteration intensity and vein density towards a central target
- Strong CuEq grades (0.66%) in a step-out intercept
- Large MT conductivity anomaly provides significant scale potential
Negative factors
- Hole stopped by a post-mineral fault zone
- True width not disclosed
Facts used in scoring: 8
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: HER-25-25 is described as a step-out hole that intersected the margins of a new porphyry system.
Evidence · text
“step-out drilling underway to vector towards the causative porphyry intrusion”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details laboratory certification (ISO 17025), QA/QC methods (blanks, standards, duplicates), and QP sign-off.
Evidence · text
“MSA Labs... an ISO 17025 and ISO 9001 certified laboratory.”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The release states that insufficient data is available to state the true thickness of the mineralized intervals.
Evidence · text
“insufficient data are available at this time to state the true thickness of the mineralized intervals.”
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Drill Results (8)
HER-25-25Hercules · copperGrade: 0.43Grade Unit: %Intercept: 271.27 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.43
- Grade Unit
- %
- Intercept
- 271.27 m
- From
- 871.73 m
- To
- 1143 m
- Hole Depth
- 1143 m
- Intercept Depth
- 871.73 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:871.73-1143
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.51
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Intercepts the margin of a new porphyry system with encouraging copper grades.
Positive factors
- Discovery of new porphyry margins
Negative factors
- Apparent width only
Evidence · table
“0.43”
Context: 271.27
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
HER-25-25Hercules · molybdenumGrade: 75Grade Unit: ppmIntercept: 271.27 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- molybdenum
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 75
- Grade Unit
- ppm
- Intercept
- 271.27 m
- From
- 871.73 m
- To
- 1143 m
- Hole Depth
- 1143 m
- Intercept Depth
- 871.73 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:871.73-1143
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.51
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Molybdenum present as a byproduct in the porphyry system.
Evidence · table
“75”
Context: 271.27
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
HER-25-25Hercules · silverGrade: 2.6Grade Unit: g/tIntercept: 271.27 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 2.6
- Grade Unit
- g/t
- Intercept
- 271.27 m
- From
- 871.73 m
- To
- 1143 m
- Hole Depth
- 1143 m
- Intercept Depth
- 871.73 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:871.73-1143
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.51
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Silver present as a byproduct.
Evidence · table
“2.6”
Context: 271.27
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
HER-25-25Hercules · goldGrade: 0.024Grade Unit: g/tIntercept: 271.27 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- gold
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.024
- Grade Unit
- g/t
- Intercept
- 271.27 m
- From
- 871.73 m
- To
- 1143 m
- Hole Depth
- 1143 m
- Intercept Depth
- 871.73 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:871.73-1143
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.51
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Gold present as a trace byproduct.
Evidence · table
“0.024”
Context: 271.27
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
HER-25-25Hercules · copperGrade: 0.56Grade Unit: %Intercept: 176.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.56
- Grade Unit
- %
- Intercept
- 176.78 m
- From
- 914.4 m
- To
- 1091.18 m
- Hole Depth
- 1143 m
- Intercept Depth
- 914.4 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:914.4-1091.18
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.66
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Strong high-grade intercept within the new porphyry system.
Positive factors
- High-grade sub-interval within the porphyry margin
Negative factors
- Apparent width only
Evidence · table
“0.56”
Context: 176.78
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
HER-25-25Hercules · molybdenumGrade: 92Grade Unit: ppmIntercept: 176.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- molybdenum
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 92
- Grade Unit
- ppm
- Intercept
- 176.78 m
- From
- 914.4 m
- To
- 1091.18 m
- Hole Depth
- 1143 m
- Intercept Depth
- 914.4 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:914.4-1091.18
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.66
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Molybdenum present as a byproduct.
Evidence · table
“92”
Context: 176.78
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
HER-25-25Hercules · silverGrade: 2.2Grade Unit: g/tIntercept: 176.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 2.2
- Grade Unit
- g/t
- Intercept
- 176.78 m
- From
- 914.4 m
- To
- 1091.18 m
- Hole Depth
- 1143 m
- Intercept Depth
- 914.4 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:914.4-1091.18
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.66
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Silver present as a byproduct.
Evidence · table
“2.2”
Context: 176.78
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
HER-25-25Hercules · goldGrade: 0.031Grade Unit: g/tIntercept: 176.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-25
- Project
- Hercules
- Commodity
- gold
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.031
- Grade Unit
- g/t
- Intercept
- 176.78 m
- From
- 914.4 m
- To
- 1091.18 m
- Hole Depth
- 1143 m
- Intercept Depth
- 914.4 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-25:914.4-1091.18
- Mining Method
- open_pit
Location
- Loc. Confidence
- high
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 0.66
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-05-26T00:00:00.000Z
Reasoning: Gold present as a trace byproduct.
Evidence · table
“0.031”
Context: 176.78
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
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.