Hercules extends Idaho copper discovery
Original announcement by northernminer on
- Company
- Hercules Metals
- Ticker
- BIG
- Exchange
- Unavailable
- Region
- Idaho
- Primary commodity
- Copper
- Secondary commodities
- Gold
- Document categories
- Drill results
- Extracted
- 2026-09-30 16:48:53 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Hercules Metals has extended its Southern Flats copper discovery in Idaho with hole HER-26-01 reporting 286.5 metres at 0.43% copper. The drilling represents a step-out to the west of previous discovery holes and aims to connect the Southern Flats zone with the Leviathan system.
Reasoning: Successful step-out drilling at Southern Flats extends the copper discovery, though true widths are not disclosed and the hole ended in a lower-grade zone.
Positive factors
- extension of Southern Flats discovery
- step-out drilling successful
- large porphyry system potential
Negative factors
- apparent width only (no true width)
- lower-grade intrusion at end of hole
Facts used in scoring: 2
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The latest hole stepped 200 metres west of the Southern Flats discovery hole.
Evidence · text
“The latest hole stepped 200 metres west of the Southern Flats discovery hole.”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: Reported intervals are drilled lengths; the release didn’t provide true widths.
Evidence · text
“Reported intervals are drilled lengths; the release didn’t provide true widths.”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Drill Results (2)
HER-26-01Southern Flats · copperGrade: 0.43Grade Unit: %Intercept: 286.5 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Southern Flats
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.43
- Grade Unit
- %
- Intercept
- 286.5 m
- From
- 862.6 m
- To
- 1149.1 m
- Intercept Depth
- 862.6 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.6-1149.1
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-30T00:00:00.000Z
Reasoning: A wide intercept of 0.43% Cu in a porphyry system is a solid exploration result.
Positive factors
- significant width
Negative factors
- apparent width only
Evidence · text
“Hole HER-26-01 cut 286.5 metres grading 0.43% copper from 862.6 metres downhole”
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-26-01Southern Flats · copperGrade: 0.61Grade Unit: %Intercept: 65.5 mView all detailsHide details
Identity
- Hole ID
- HER-26-01
- Project
- Southern Flats
- Commodity
- copper
- Region
- usa_id
- Reported Region
- usa_id
- Ticker
- BIG
Geometry
- Grade
- 0.61
- Grade Unit
- %
- Intercept
- 65.5 m
- From
- 862.6 m
- To
- 928.1 m
- Intercept Depth
- 862.6 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-26-01:862.6-928.1
- Mining Method
- open_pit
Location
- Loc. Confidence
- medium
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks
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
- higher grade sub-interval
Evidence · text
“including 65.5 metres at 0.61% copper from the same starting depth”
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.