Hercules Metals Intersects 420 m of 0.60% Copper and 6 g/t Ag, Including 113 m of 1.38% Copper and 14 g/t Ag at the Leviathan Porphyry System in Idaho
Original announcement by tmx on
- Company
- Hercules Metals Corp.
- Ticker
- BIG
- Exchange
- TSX
- Region
- Idaho
- Primary commodity
- Copper
- Secondary commodities
- Silver, Molybdenum
- Document categories
- Drill results
- Extracted
- 2026-08-21 02:40:52 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Hercules Metals reported high-grade copper-silver drill results from its Leviathan porphyry system in Idaho, including a 6.1m intercept of 12.52% Cu. The drilling intersected a new magnetotelluric (MT) anomaly, suggesting the potential for deep-seated porphyry expansion.
Reasoning: Significant copper intercepts (up to 12.52% Cu) and continuous mineralization extending into a new geophysical anomaly suggest high potential for porphyry expansion.
Positive factors
- high-grade copper intercepts
- expansion of mineralization at depth
- geophysical anomaly correlation
- QA/QC disclosed
Negative factors
- true width not disclosed
Facts used in scoring: 39
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 6.1 m at 12.52% Cu is exceptionally high grade for a porphyry system.
Evidence · table
“12.52”
Context: 6.10
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, IMS-230 method, and use of blanks, standards, and duplicates.
Evidence · text
“MSA Labs employs internal quality control standards, duplicates and blank samples”
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”
Extracted facts
Stored fact records: 39. Some facts used in scoring do not have a stored record.
Drill Results (39)
HER-25-15Leviathan · copperGrade: 0.56Grade Unit: %Intercept: 463.29 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.56
- Grade Unit
- %
- Intercept
- 463.29 m
- From
- 300.23 m
- To
- 763.52 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:300.23-763.52
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Moderate grade copper intercept over a very large width.
Positive factors
- continuous mineralization
Evidence · table
“0.56”
Context: 463.29
HER-25-15Leviathan · silverGrade: 5.3Grade Unit: g/tIntercept: 463.29 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 5.3
- Grade Unit
- g/t
- Intercept
- 463.29 m
- From
- 300.23 m
- To
- 763.52 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:300.23-763.52
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Silver byproduct in a large copper interval.
Evidence · table
“5.3”
Context: 463.29
HER-25-15Leviathan · copperGrade: 0.6Grade Unit: %Intercept: 420.62 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.6
- Grade Unit
- %
- Intercept
- 420.62 m
- From
- 300.23 m
- To
- 720.85 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:300.23-720.85
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Strong continuous copper interval.
Positive factors
- thick interval
Evidence · table
“0.60”
Context: 420.62
HER-25-15Leviathan · silverGrade: 5.5Grade Unit: g/tIntercept: 420.62 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 5.5
- Grade Unit
- g/t
- Intercept
- 420.62 m
- From
- 300.23 m
- To
- 720.85 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:300.23-720.85
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Silver byproduct.
Evidence · table
“5.5”
Context: 420.62
HER-25-15Leviathan · copperGrade: 1.38Grade Unit: %Intercept: 112.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 1.38
- Grade Unit
- %
- Intercept
- 112.78 m
- From
- 347.47 m
- To
- 460.25 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:347.47-460.25
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: High grade copper intercept in a porphyry system.
Positive factors
- strong grade
Evidence · table
“1.38”
Context: 112.78
HER-25-15Leviathan · silverGrade: 13.7Grade Unit: g/tIntercept: 112.78 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 13.7
- Grade Unit
- g/t
- Intercept
- 112.78 m
- From
- 347.47 m
- To
- 460.25 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-15:347.47-460.25
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Elevated silver grades within high-grade copper interval.
Evidence · table
“13.7”
Context: 112.78
HER-25-17Leviathan · copperGrade: 2.17Grade Unit: %Intercept: 46.03 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 2.17
- Grade Unit
- %
- Intercept
- 46.03 m
- From
- 336.8 m
- To
- 382.83 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-17:336.8-382.83
- Mining Method
- underground
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Strong copper intercept.
Positive factors
- strong grade
Evidence · table
“2.17”
Context: 46.03
HER-25-17Leviathan · copperGrade: 12.52Grade Unit: %Intercept: 6.1 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 12.52
- Grade Unit
- %
- Intercept
- 6.1 m
- From
- 336.8 m
- To
- 342.9 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-17:336.8-342.9
- Mining Method
- underground
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Exceptional copper grade.
Positive factors
- Bonanza Intercept
Evidence · table
“12.52”
Context: 6.10
HER-25-17Leviathan · copperGrade: 0.5Grade Unit: %Intercept: 70.1 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.5
- Grade Unit
- %
- Intercept
- 70.1 m
- From
- 836.68 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-17:836.68-906.78
- Mining Method
- underground
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Moderate grade copper intercept at depth.
Evidence · table
“0.50”
Context: 70.1
HER-25-17Leviathan · copperGrade: 0.62Grade Unit: %Intercept: 12.19 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.62
- Grade Unit
- %
- Intercept
- 12.19 m
- From
- 894.59 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-17:894.59-906.78
- Mining Method
- underground
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Increasing grade at depth within MT anomaly.
Evidence · table
“0.62”
Context: 12.19
HER-25-19Leviathan · copperGrade: 0.31Grade Unit: %Intercept: 164.9 mView all detailsHide details
Identity
- Hole ID
- HER-25-19
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.31
- Grade Unit
- %
- Intercept
- 164.9 m
- From
- 168.86 m
- To
- 333.76 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-19:168.86-333.76
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Low grade copper intercept.
Evidence · table
“0.31”
Context: 164.9
HER-25-19Leviathan · copperGrade: 0.54Grade Unit: %Intercept: 41.45 mView all detailsHide details
Identity
- Hole ID
- HER-25-19
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.54
- Grade Unit
- %
- Intercept
- 41.45 m
- From
- 168.86 m
- To
- 210.31 m
Classification
- Deposit Type
- porphyry
- Program
- exploration
- Sample Type
- drill
- Group ID
- HER-25-19:168.86-210.31
- Mining Method
- open_pit
QA/QC
- Laboratory
- MSA Labs
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Moderate grade copper sub-interval.
Evidence · table
“0.54”
Context: 41.45
HER-25-15Leviathan · moGrade: 62Grade Unit: ppmIntercept: 463.29 mView all detailsHide details
Identity
- Hole ID
- HER-25-15
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 62
- Grade Unit
- ppm
- Intercept
- 463.29 m
- From
- 300.23 m
- To
- 763.52 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-15:300.23-763.52
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 62 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“62”
Context: HER-25-15
includingLeviathan · copperGrade: 0.6Grade Unit: %Intercept: 420.62 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.6
- Grade Unit
- %
- Intercept
- 420.62 m
- From
- 300.23 m
- To
- 720.85 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:300.23-720.85
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.6 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 252.4 %·m is strong.
Positive factors
- 0.6 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.60”
Context: including
includingLeviathan · moGrade: 65Grade Unit: ppmIntercept: 420.62 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 65
- Grade Unit
- ppm
- Intercept
- 420.62 m
- From
- 300.23 m
- To
- 720.85 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:300.23-720.85
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 65 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“65”
Context: including
includingLeviathan · silverGrade: 5.5Grade Unit: g/tIntercept: 420.62 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 5.5
- Grade Unit
- g/t
- Intercept
- 420.62 m
- From
- 300.23 m
- To
- 720.85 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:300.23-720.85
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 5.5 g/t silver is moderate against the default band [500, 200, 100, 30] g/t. Grade×width 2313.4 g/t·m is moderate (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“5.5”
Context: including
includingLeviathan · copperGrade: 1.38Grade Unit: %Intercept: 112.78 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 1.38
- Grade Unit
- %
- Intercept
- 112.78 m
- From
- 347.47 m
- To
- 460.25 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:347.47-460.25
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 1.38 % copper is exceptional against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 155.6 %·m is strong (grade alone is exceptional; the better of the two is used).
Positive factors
- 1.38 % copper is exceptional on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“1.38”
Context: including
includingLeviathan · moGrade: 40Grade Unit: ppmIntercept: 112.78 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 40
- Grade Unit
- ppm
- Intercept
- 112.78 m
- From
- 347.47 m
- To
- 460.25 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:347.47-460.25
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 40 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“40”
Context: including
includingLeviathan · silverGrade: 13.7Grade Unit: g/tIntercept: 112.78 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 13.7
- Grade Unit
- g/t
- Intercept
- 112.78 m
- From
- 347.47 m
- To
- 460.25 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:347.47-460.25
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 13.7 g/t silver is moderate against the default band [500, 200, 100, 30] g/t. Grade×width 1545.1 g/t·m is moderate (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“13.7”
Context: including
HER-25-17Leviathan · copperGrade: 0.39Grade Unit: %Intercept: 585.22 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.39
- Grade Unit
- %
- Intercept
- 585.22 m
- From
- 321.56 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-17:321.56-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.39 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 228.2 %·m is strong (grade alone is moderate; the better of the two is used).
Positive factors
- 0.39 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.39”
Context: HER-25-17
HER-25-17Leviathan · moGrade: 49Grade Unit: ppmIntercept: 585.22 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 49
- Grade Unit
- ppm
- Intercept
- 585.22 m
- From
- 321.56 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-17:321.56-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 49 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“49”
Context: HER-25-17
HER-25-17Leviathan · silverGrade: 2.1Grade Unit: g/tIntercept: 585.22 mView all detailsHide details
Identity
- Hole ID
- HER-25-17
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 2.1
- Grade Unit
- g/t
- Intercept
- 585.22 m
- From
- 321.56 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-17:321.56-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 2.1 g/t silver is moderate against the default band [500, 200, 100, 30] g/t. Grade×width 1229.0 g/t·m is moderate (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“2.1”
Context: HER-25-17
includingLeviathan · copperGrade: 2.17Grade Unit: %Intercept: 46.03 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 2.17
- Grade Unit
- %
- Intercept
- 46.03 m
- From
- 336.8 m
- To
- 382.83 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-382.83
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 2.17 % copper is exceptional against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 99.9 %·m is moderate (grade alone is exceptional; the better of the two is used).
Positive factors
- 2.17 % copper is exceptional on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“2.17”
Context: including
includingLeviathan · moGrade: 44Grade Unit: ppmIntercept: 46.03 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 44
- Grade Unit
- ppm
- Intercept
- 46.03 m
- From
- 336.8 m
- To
- 382.83 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-382.83
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 44 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“44”
Context: including
includingLeviathan · silverGrade: 16Grade Unit: g/tIntercept: 46.03 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 16
- Grade Unit
- g/t
- Intercept
- 46.03 m
- From
- 336.8 m
- To
- 382.83 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-382.83
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 16 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 736.5 g/t·m is weak (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“16.0”
Context: including
includingLeviathan · copperGrade: 12.52Grade Unit: %Intercept: 6.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 12.52
- Grade Unit
- %
- Intercept
- 6.1 m
- From
- 336.8 m
- To
- 342.9 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-342.9
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 12.52 % copper is exceptional against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 76.4 %·m is moderate (grade alone is exceptional; the better of the two is used).
Positive factors
- 12.52 % copper is exceptional on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“12.52”
Context: including
includingLeviathan · moGrade: 80Grade Unit: ppmIntercept: 6.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 80
- Grade Unit
- ppm
- Intercept
- 6.1 m
- From
- 336.8 m
- To
- 342.9 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-342.9
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 80 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“80”
Context: including
includingLeviathan · silverGrade: 11.3Grade Unit: g/tIntercept: 6.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 11.3
- Grade Unit
- g/t
- Intercept
- 6.1 m
- From
- 336.8 m
- To
- 342.9 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:336.8-342.9
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 11.3 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 68.9 g/t·m is below.
Negative factors
- 11.3 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“11.3”
Context: including
includingLeviathan · copperGrade: 0.5Grade Unit: %Intercept: 70.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.5
- Grade Unit
- %
- Intercept
- 70.1 m
- From
- 836.68 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:836.68-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.5 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 35.0 %·m is weak (grade alone is strong; the better of the two is used).
Positive factors
- 0.5 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.50”
Context: including
includingLeviathan · moGrade: 117Grade Unit: ppmIntercept: 70.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 117
- Grade Unit
- ppm
- Intercept
- 70.1 m
- From
- 836.68 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:836.68-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 117 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“117”
Context: including
includingLeviathan · silverGrade: 1Grade Unit: g/tIntercept: 70.1 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 1
- Grade Unit
- g/t
- Intercept
- 70.1 m
- From
- 836.68 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:836.68-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 1 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 70.1 g/t·m is below.
Negative factors
- 1 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“1.0”
Context: including
includingLeviathan · copperGrade: 0.62Grade Unit: %Intercept: 12.19 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.62
- Grade Unit
- %
- Intercept
- 12.19 m
- From
- 894.59 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:894.59-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.62 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 7.6 %·m is below (grade alone is strong; the better of the two is used).
Positive factors
- 0.62 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.62”
Context: including
includingLeviathan · moGrade: 142Grade Unit: ppmIntercept: 12.19 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 142
- Grade Unit
- ppm
- Intercept
- 12.19 m
- From
- 894.59 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:894.59-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 142 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“142”
Context: including
includingLeviathan · silverGrade: 0.2Grade Unit: g/tIntercept: 12.19 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.2
- Grade Unit
- g/t
- Intercept
- 12.19 m
- From
- 894.59 m
- To
- 906.78 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:894.59-906.78
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.2 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 2.4 g/t·m is below.
Negative factors
- 0.2 g/t silver is below the weak threshold (30 g/t) on the default band.
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.2”
Context: including
HER-25-19Leviathan · moGrade: 58Grade Unit: ppmIntercept: 164.9 mView all detailsHide details
Identity
- Hole ID
- HER-25-19
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 58
- Grade Unit
- ppm
- Intercept
- 164.9 m
- From
- 168.86 m
- To
- 333.76 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-19:168.86-333.76
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 58 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“58”
Context: HER-25-19
HER-25-19Leviathan · silverGrade: 4.1Grade Unit: g/tIntercept: 164.9 mView all detailsHide details
Identity
- Hole ID
- HER-25-19
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 4.1
- Grade Unit
- g/t
- Intercept
- 164.9 m
- From
- 168.86 m
- To
- 333.76 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- HER-25-19:168.86-333.76
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 4.1 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 676.1 g/t·m is weak (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“4.1”
Context: HER-25-19
includingLeviathan · copperGrade: 0.54Grade Unit: %Intercept: 41.45 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- copper
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 0.54
- Grade Unit
- %
- Intercept
- 41.45 m
- From
- 168.86 m
- To
- 210.31 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:168.86-210.31
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 0.54 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 22.4 %·m is weak (grade alone is strong; the better of the two is used).
Positive factors
- 0.54 % copper is strong on the porphyry deposit band.
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“0.54”
Context: including
includingLeviathan · moGrade: 56Grade Unit: ppmIntercept: 41.45 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- mo
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 56
- Grade Unit
- ppm
- Intercept
- 41.45 m
- From
- 168.86 m
- To
- 210.31 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:168.86-210.31
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table: 56 ppm mo. No grade band defined for this commodity, so the score is a placeholder.
Negative factors
- No grade rubric for mo; intercept not scored.
Evidence · table
“56”
Context: including
includingLeviathan · silverGrade: 7.1Grade Unit: g/tIntercept: 41.45 mView all detailsHide details
Identity
- Hole ID
- including
- Project
- Leviathan
- Commodity
- silver
- Region
- usa_id
- Reported Region
- Idaho
- Ticker
- BIG
Geometry
- Grade
- 7.1
- Grade Unit
- g/t
- Intercept
- 41.45 m
- From
- 168.86 m
- To
- 210.31 m
Classification
- Deposit Type
- porphyry
- Sample Type
- drill
- Group ID
- including:168.86-210.31
- Mining Method
- open_pit
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-02-04T00:00:00.000Z
Reasoning: Expanded from assay table. 7.1 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 294.3 g/t·m is weak (grade alone is below; the better of the two is used).
Negative factors
- Scored from rubric bands during table expansion, not from document context.
Evidence · table
“7.1”
Context: including
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.