Hercules Metals enlarges copper porphyry discovery at Southern Flats Zone, Hercules Project, Idaho

Original announcement by resourceworld on

Company
Hercules Metals Corp.
Ticker
BIG
Exchange
Unavailable
Region
Idaho
Primary commodity
Copper
Secondary commodities
Molybdenum, Silver, Gold
Document categories
Drill results
Extracted
2026-09-30 16:18:49 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Hercules Metals Corp. has reported step-out drill results from hole HER-26-01, extending the Southern Flats copper porphyry discovery at the Hercules Project in Idaho. The hole intersected 287 metres of 0.58% CuEq, including a high-grade 66-metre interval of 0.80% CuEq.

Reasoning: Significant step-out drill results extending a known porphyry discovery with high-grade intercepts.

Positive factors

  • Step-out drilling extended mineralization
  • High-grade sub-interval reported
  • Discovery of second porphyry centre in district

Facts used in scoring: 8

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Hole HER-26-01 is a 200-metre step-out that extended mineralization west of the previous discovery hole.

Evidence · text

“200-metre step-out drill hole HER-26-01 has extended mineralization west of the Southern Flats discovery hole HER-25-25”

No QA/QC Disclosurenegative

Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.

Why it applies: The release does not disclose specific QA/QC protocols, lab certification, or QP sign-off for these assays.

Evidence · text

“HER-26-01 encountered transitional phyllic to outer potassic alteration”

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: 287 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
287 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:0-287
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QA/QC Methods
standards, blanks

Metal Equivalent

Metal Eq. Grade
0.58
Metal Eq. Unit
% CuEq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: Strong copper intercept in a step-out hole.

Positive factors

  • Significant width

Evidence · text

“287 metres of 0.58% CuEq (0.43% Cu, 158 ppm Mo, 4.0 g/t Ag, 0.03 g/t Au)”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

HER-26-01Hercules · molybdenumGrade: 158Grade Unit: ppmIntercept: 287 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
287 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:0-287
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace molybdenum reported in the main intercept.

Evidence · text

“158 ppm Mo”

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: 287 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
287 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:0-287
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace silver reported in the main intercept.

Evidence · text

“4.0 g/t Ag”

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: 287 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
287 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:0-287
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace gold reported in the main intercept.

Evidence · text

“0.03 g/t Au”

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: 66 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
66 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:sub-66m
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

QA/QC

QA/QC Disclosed
Yes
QA/QC Methods
standards, blanks

Metal Equivalent

Metal Eq. Grade
0.8
Metal Eq. Unit
% CuEq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-09-30T00:00:00.000Z

Reasoning: Strong high-grade sub-interval within the main intercept.

Positive factors

  • High-grade sub-interval

Evidence · text

“including 66 metres of 0.80% CuEq (0.61% Cu, 89 ppm Mo, 11.3 g/t Ag, 0.04 g/t Au)”

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

Metal Equivalent Opaquenegative

Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.

Why it applies: an equivalent grade is reported without its assumptions

HER-26-01Hercules · molybdenumGrade: 89Grade Unit: ppmIntercept: 66 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
66 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:sub-66m
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace molybdenum reported in the high-grade sub-interval.

Evidence · text

“89 ppm Mo”

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: 66 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
66 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:sub-66m
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace silver reported in the high-grade sub-interval.

Evidence · text

“11.3 g/t Ag”

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: 66 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
66 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-26-01:sub-66m
Mining Method
open_pit

Location

Location
Southern Flats Zone
Loc. Source
document

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: Trace gold reported in the high-grade sub-interval.

Evidence · text

“0.04 g/t Au”

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.