Hercules Extends Copper Porphyry Discovery at Southern Flats Zone, Hercules Project, Idaho
Original announcement by newsfile on
- Company
- Hercules Metals Corp.
- Ticker
- BIG
- Exchange
- Unavailable
- Region
- Idaho
- Primary commodity
- Copper
- Secondary commodities
- Molybdenum, Silver, Gold
- Document categories
- Drill results, Other
- Extracted
- 2026-09-30 11:33:55 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Hercules Metals Corp. has reported significant step-out drill results from the Southern Flats zone of the Hercules Project in Idaho. Drill hole HER-26-01 intersected 287 m of 0.58% CuEq, extending the known copper porphyry mineralization and demonstrating strong vertical continuity.
Reasoning: The 287m intercept of 0.58% CuEq represents a significant step-out extension of the Southern Flats zone, demonstrating the scale and continuity of the porphyry system.
Positive factors
- significant step-out extension of porphyry mineralization
- strong vertical continuity
- presence of bornite mineralization suggesting enrichment potential
- QA/QC disclosed with certified lab and QP sign-off
Negative factors
- apparent width only (true width not stated)
Facts used in scoring: 8
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: HER-26-01 is described as a 200 m step-out drill hole that has extended mineralization west of the Southern Flats discovery hole.
Evidence · text
“200 m step-out drill hole HER-26-01 (" 26-01 ") has extended mineralization west of the Southern Flats discovery hole HER-25-25”
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 preparation, IMS-230 method, and the use of CRMs, blanks, and duplicates.
Evidence · text
“MSA Labs employs internal quality control standards, duplicates and blank samples at set frequencies.”
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 document explicitly 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-26-01Hercules · copperGrade: 0.43Grade Unit: %Intercept: 286.52 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.43
- Grade Unit
- %
- Intercept
- 286.52 m
- From
- 862.58 m
- To
- 1149.1 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-1149.1
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.58
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Large intercept of 0.43% Cu over 286.52m in a porphyry system.
Positive factors
- significant width and grade for porphyry
Negative factors
- apparent width only
Evidence · table
“0.43”
Context: 286.52
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-26-01Hercules · molybdenumGrade: 158Grade Unit: ppmIntercept: 286.52 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- molybdenum
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 158
- Grade Unit
- ppm
- Intercept
- 286.52 m
- From
- 862.58 m
- To
- 1149.1 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-1149.1
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.58
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace molybdenum reported in porphyry intercept.
Evidence · table
“158”
Context: 286.52
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-26-01Hercules · silverGrade: 4Grade Unit: g/tIntercept: 286.52 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 4
- Grade Unit
- g/t
- Intercept
- 286.52 m
- From
- 862.58 m
- To
- 1149.1 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-1149.1
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.58
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace silver reported in porphyry intercept.
Evidence · table
“4.0”
Context: 286.52
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-26-01Hercules · goldGrade: 0.03Grade Unit: g/tIntercept: 286.52 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- gold
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.03
- Grade Unit
- g/t
- Intercept
- 286.52 m
- From
- 862.58 m
- To
- 1149.1 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-1149.1
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.58
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace gold reported in porphyry intercept.
Evidence · table
“0.03”
Context: 286.52
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-26-01Hercules · copperGrade: 0.61Grade Unit: %Intercept: 65.54 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.61
- Grade Unit
- %
- Intercept
- 65.54 m
- From
- 862.58 m
- To
- 928.12 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-928.12
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.8
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Stronger grade sub-interval within the main intercept.
Positive factors
- high grade sub-interval
Evidence · table
“0.61”
Context: 65.54
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-26-01Hercules · molybdenumGrade: 89Grade Unit: ppmIntercept: 65.54 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- molybdenum
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 89
- Grade Unit
- ppm
- Intercept
- 65.54 m
- From
- 862.58 m
- To
- 928.12 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-928.12
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.8
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace molybdenum reported in sub-interval.
Evidence · table
“89”
Context: 65.54
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-26-01Hercules · silverGrade: 11.3Grade Unit: g/tIntercept: 65.54 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- silver
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 11.3
- Grade Unit
- g/t
- Intercept
- 65.54 m
- From
- 862.58 m
- To
- 928.12 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-928.12
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.8
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace silver reported in sub-interval.
Evidence · table
“11.3”
Context: 65.54
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-26-01Hercules · goldGrade: 0.04Grade Unit: g/tIntercept: 65.54 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Hercules
- Commodity
- gold
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.04
- Grade Unit
- g/t
- Intercept
- 65.54 m
- From
- 862.58 m
- To
- 928.12 m
- Hole Depth
- 1258.82 m
- Intercept Depth
- 862.58 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.58-928.12
- Mining Method
- open_pit
Location
- Location
- Southern Flats
- Easting
- 511250
- Northing
- 4954900
- Elevation
- 1246 m
- Azimuth
- 270 °
- Dip
- -87.48 °
- Loc. Confidence
- high
- Loc. Source
- document
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
- 0.8
- Metal Eq. Unit
- % Cu-Eq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: Trace gold reported in sub-interval.
Evidence · table
“0.04”
Context: 65.54
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.