Hercules Metals Extends Copper Porphyry Discovery at Southern Flats Zone, Hercules Project, Idaho

Original announcement by jmn on

Company
Hercules Metals Corp.
Ticker
BIG
Exchange
TSXV
Region
Idaho
Primary commodity
Copper
Secondary commodities
Molybdenum, Silver, Gold
Document categories
Drill results, Other
Extracted
2026-09-30 12:22:09 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Hercules Metals has reported a significant 287m step-out drill intercept at the Southern Flats zone of the Hercules Project in Idaho. The hole (HER-26-01) returned 0.58% CuEq, extending the copper porphyry discovery south of the Leviathan system.

Reasoning: The 287m step-out intercept at 0.58% CuEq extends the known porphyry system to the south, demonstrating significant scale potential.

Positive factors

  • Step-Out Extension
  • Significant width (287m)
  • Continuous mineralization

Negative factors

  • Apparent Width Only

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 a 200m step-out hole extending mineralization west of HER-25-25.

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: Release details MSA Labs' certification and specific QA/QC protocols including CRMs and blanks.

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 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 details
Link to this fact

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

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: Significant width intercept in a step-out hole extending the porphyry system.

Positive factors

  • Step-Out Extension

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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · molybdenumGrade: 158Grade Unit: ppmIntercept: 286.52 mView all details
Link to this fact

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

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 the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · silverGrade: 4Grade Unit: g/tIntercept: 286.52 mView all details
Link to this fact

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

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 the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · goldGrade: 0.03Grade Unit: g/tIntercept: 286.52 mView all details
Link to this fact

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

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 the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · copperGrade: 0.61Grade Unit: %Intercept: 65.54 mView all details
Link to this fact

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

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: Higher grade sub-interval within the main intercept.

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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · molybdenumGrade: 89Grade Unit: ppmIntercept: 65.54 mView all details
Link to this fact

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

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 the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · silverGrade: 11.3Grade Unit: g/tIntercept: 65.54 mView all details
Link to this fact

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

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: Silver reported in the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

HER-26-01Hercules · goldGrade: 0.04Grade Unit: g/tIntercept: 65.54 mView all details
Link to this fact

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

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 the 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

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: "Arizona Eagle Mining Announces Commencement of Engineering Studies to Reopen McCabe Mine for Underground Drilling Scorpi"

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.