Hercules Metals Intersects 670 m of 0.45% Copper, 4 g/t Ag and 95 ppm Mo, including 213 m of 0.67% Copper, 10 g/t Ag, 128 ppm Mo 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, Lead, Zinc
Document categories
Drill results
Extracted
2026-08-21 02:31:03 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Hercules Metals Corp. announced significant drill results from its Leviathan porphyry copper system in Idaho, highlighted by drill hole HER-25-18 intersecting 670.44 meters of 0.45% copper, 4.0 g/t silver, and 95 ppm molybdenum, including a higher-grade sub-interval. This represents the longest mineralized interval to date and a 200-meter step-out, indicating strong continuity and expansion potential for the system. Additionally, reconnaissance drilling identified significant silver-lead-zinc mineralization in distal areas, suggesting further prospectivity.

Reasoning: Hercules Metals reported exceptional drill results from its Leviathan porphyry copper system, including the longest interval to date (670.44 m of 0.45% Cu) and high-grade sub-intervals, demonstrating significant scale and continuity in a 200-meter step-out. Reconnaissance drilling also identified significant silver-lead-zinc mineralization, expanding the overall prospectivity of the property.

Positive factors

  • Longest interval to date
  • Significant step-out extension
  • High-grade zones within broader mineralization
  • Strong continuity of mineralization
  • Porphyry model consistent with results
  • Comprehensive QA/QC disclosure
  • Qualified Person sign-off

Negative factors

  • Apparent width only reported for all intervals
  • Metal equivalent assumptions not disclosed
  • Cut-off grades for compositing not disclosed

Facts used in scoring: 76

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Drill hole HER-25-18 was drilled as a 200 metre step-out to the southwest of previously reported drill hole HER-25-15, extending the known mineralization.

Evidence · text

“HER-25-18 was drilled as a 200 metre step-out to the southwest of previously reported drill hole HER-25-15”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: The release includes a dedicated 'Sample Analysis and QAQC' section detailing laboratory certification, assay methods, and insertion of standards, duplicates, and blanks.

Evidence · text

“Sample Analysis and QAQC All drill core samples were prepped and analyzed at MSA Labs in Elko, Nevada and/or Langley, British Columbia, an ISO 17025 and ISO 9001 certified laboratory.”

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 are available at this time to state the true thickness of the mineralized intervals' for all reported intervals.

Evidence · text

“The intervals reported represent drill intercepts and insufficient data are available at this time to state the true thickness of the mineralized intervals.”

Metal Equivalent Opaquenegative

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

Why it applies: Silver equivalent (AgEq) grades are reported in Table 2 and for HER-25-06 without disclosing the price or recovery assumptions used for their calculation.

Evidence · table

“AgEq (g/t)”

Context: Ag (g/t)

Cut-off Undisclosednegative

High-grade interval reported without stating the cut-off grade used for compositing.

Why it applies: No cut-off grade is stated for the reported drill intervals, making it difficult to assess the compositing methodology.

Evidence · text

“The intervals reported represent drill intercepts and insufficient data are available at this time to state the true thickness of the mineralized intervals.”

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept in HER-25-18 of 57.36 m at 1.06% Cu is an exceptional grade for a porphyry copper deposit.

Evidence · table

“1.06”

Context: 57.36

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: The intercept in HER-25-20 of 39.5 m at 1.55% Cu is an exceptional grade for a porphyry copper deposit.

Evidence · table

“1.55”

Context: 39.5

Stale Data Re-releasenegative

Historical results re-announced with no new assays or reinterpretation — low genuine novelty.

Why it applies: The silver-lead-zinc results for HER-25-06 are explicitly stated as 'previously reported intervals'.

Evidence · text

“including the following previously reported intervals: 10.7 m of 257.2 g/t Ag, 2.18% Pb, and 4.62% Zn (420.5 g/t AgEq)”

Extracted facts

Stored fact records: 76. Some facts used in scoring do not have a stored record.

Drill Results (76)

HER-25-18Leviathan · copperGrade: 0.45Grade Unit: %Intercept: 670.44 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.45
Grade Unit
%
Intercept
670.44 m
From
172.21 m
To
842.65 m
Hole Depth
842.65 m
Intercept Depth
172.21 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-18:172.21-842.65
Mining Method
open_pit

Location

Easting
511656.9
Northing
4956141.17
Elevation
1363.04 m
Azimuth
315 °
Dip
-45.25 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This is the longest and a strong copper intercept to date for a porphyry system, significantly extending the known mineralization in a 200-meter step-out.

Positive factors

  • Longest interval to date
  • Step-Out Extension
  • Strong continuity
  • Porphyry model consistent

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.45”

Context: 670.44

HER-25-18Leviathan · copperGrade: 0.67Grade Unit: %Intercept: 212.81 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.67
Grade Unit
%
Intercept
212.81 m
From
188 m
To
400.81 m
Hole Depth
842.65 m
Intercept Depth
188 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-18:188.0-400.81
Mining Method
open_pit

Location

Easting
511656.9
Northing
4956141.17
Elevation
1363.04 m
Azimuth
315 °
Dip
-45.25 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This sub-interval contains strong copper grades within the broader significant intercept, indicating a high-grade zone.

Positive factors

  • High-grade zone
  • Strong continuity

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.67”

Context: 212.81

HER-25-18Leviathan · copperGrade: 1.06Grade Unit: %Intercept: 57.36 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.06
Grade Unit
%
Intercept
57.36 m
From
188 m
To
245.36 m
Hole Depth
842.65 m
Intercept Depth
188 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-18:188.0-245.36
Mining Method
open_pit

Location

Easting
511656.9
Northing
4956141.17
Elevation
1363.04 m
Azimuth
315 °
Dip
-45.25 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This sub-interval contains exceptional copper grades, representing a bonanza intercept within the broader significant interval.

Positive factors

  • Bonanza Intercept
  • Exceptional grade for porphyry

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“1.06”

Context: 57.36

HER-25-18Leviathan · copperGrade: 0.49Grade Unit: %Intercept: 140.09 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.49
Grade Unit
%
Intercept
140.09 m
From
702.56 m
To
842.65 m
Hole Depth
842.65 m
Intercept Depth
702.56 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-18:702.56-842.65
Mining Method
open_pit

Location

Easting
511656.9
Northing
4956141.17
Elevation
1363.04 m
Azimuth
315 °
Dip
-45.25 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This sub-interval shows strong copper grades over a good length within the main intercept.

Positive factors

  • Strong copper grade
  • Good interval length

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.49”

Context: 140.09

HER-25-13Leviathan · copperGrade: 0.57Grade Unit: %Intercept: 12.31 mView all details
Link to this fact

Identity

Hole ID
HER-25-13
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.57
Grade Unit
%
Intercept
12.31 m
From
289.56 m
To
301.87 m
Hole Depth
631.85 m
Intercept Depth
289.56 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-13:289.56-301.87
Mining Method
open_pit

Location

Easting
512131.2
Northing
4956963.39
Elevation
1616.25 m
Azimuth
355 °
Dip
-64.6 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a moderate length.

Positive factors

  • Strong copper grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.57”

Context: 12.31

HER-25-14Leviathan · copperGrade: 1.08Grade Unit: %Intercept: 6.09 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.08
Grade Unit
%
Intercept
6.09 m
From
399.29 m
To
405.38 m
Hole Depth
832.1 m
Intercept Depth
399.29 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-14:399.29-405.38
Mining Method
open_pit

Location

Easting
511912.2
Northing
4956733.27
Elevation
1525.21 m
Azimuth
315.11 °
Dip
-55.03 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This intercept shows exceptional copper grades, representing a bonanza intercept, though over a narrow width.

Positive factors

  • Bonanza Intercept
  • Exceptional grade for porphyry

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“1.08”

Context: 6.09

HER-25-14Leviathan · copperGrade: 0.57Grade Unit: %Intercept: 10.66 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.57
Grade Unit
%
Intercept
10.66 m
From
478.54 m
To
489.2 m
Hole Depth
832.1 m
Intercept Depth
478.54 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-14:478.54-489.2
Mining Method
open_pit

Location

Easting
511912.2
Northing
4956733.27
Elevation
1525.21 m
Azimuth
315.11 °
Dip
-55.03 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This intercept shows a strong copper grade over a moderate length.

Positive factors

  • Strong copper grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.57”

Context: 10.66

HER-25-14Leviathan · copperGrade: 0.31Grade Unit: %Intercept: 235.98 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.31
Grade Unit
%
Intercept
235.98 m
From
541.26 m
To
777.24 m
Hole Depth
832.1 m
Intercept Depth
541.26 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-14:541.26-777.24
Mining Method
open_pit

Location

Easting
511912.2
Northing
4956733.27
Elevation
1525.21 m
Azimuth
315.11 °
Dip
-55.03 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This intercept shows a moderate copper grade over a very long length.

Positive factors

  • Good interval length
  • Moderate copper grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.31”

Context: 235.98

HER-25-14Leviathan · copperGrade: 0.47Grade Unit: %Intercept: 76.81 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.47
Grade Unit
%
Intercept
76.81 m
From
638.56 m
To
715.37 m
Hole Depth
832.1 m
Intercept Depth
638.56 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-14:638.56-715.37
Mining Method
open_pit

Location

Easting
511912.2
Northing
4956733.27
Elevation
1525.21 m
Azimuth
315.11 °
Dip
-55.03 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This sub-interval shows strong copper grades over a good length within a broader intercept.

Positive factors

  • Strong copper grade
  • Good interval length

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.47”

Context: 76.81

HER-25-20Leviathan · copperGrade: 0.38Grade Unit: %Intercept: 300.1 mView all details
Link to this fact

Identity

Hole ID
HER-25-20
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.38
Grade Unit
%
Intercept
300.1 m
From
158.62 m
To
458.72 m
Hole Depth
468.17 m
Intercept Depth
158.62 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-20:158.62-458.72
Mining Method
open_pit

Location

Easting
511931.3
Northing
4956493.08
Elevation
1511.26 m
Azimuth
314.86 °
Dip
-61.72 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This intercept shows a moderate copper grade over a long length.

Positive factors

  • Good interval length
  • Moderate copper grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“0.38”

Context: 300.1

HER-25-20Leviathan · copperGrade: 1.55Grade Unit: %Intercept: 39.5 mView all details
Link to this fact

Identity

Hole ID
HER-25-20
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.55
Grade Unit
%
Intercept
39.5 m
From
158.62 m
To
198.12 m
Hole Depth
468.17 m
Intercept Depth
158.62 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-20:158.62-198.12
Mining Method
open_pit

Location

Easting
511931.3
Northing
4956493.08
Elevation
1511.26 m
Azimuth
314.86 °
Dip
-61.72 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This sub-interval contains exceptional copper grades, representing a bonanza intercept within a broader interval.

Positive factors

  • Bonanza Intercept
  • Exceptional grade for porphyry

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed

Evidence · table

“1.55”

Context: 39.5

HER-25-16Leviathan · silverGrade: 10.5Grade Unit: g/tIntercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
10.5
Grade Unit
g/t
Intercept
71.63 m
From
574.55 m
To
646.18 m
Hole Depth
1068.32 m
Intercept Depth
574.55 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-16:574.55-646.18
Mining Method
open_pit

Location

Easting
512628.9
Northing
4955042.4
Elevation
1401.21 m
Azimuth
270.34 °
Dip
-54.57 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
19.8
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows moderate silver grades over a good length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Good interval length

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“10.5”

Context: 71.63

HER-25-16Leviathan · silverGrade: 27Grade Unit: g/tIntercept: 15.24 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
27
Grade Unit
g/t
Intercept
15.24 m
From
760.48 m
To
775.72 m
Hole Depth
1068.32 m
Intercept Depth
760.48 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-16:760.48-775.72
Mining Method
open_pit

Location

Easting
512628.9
Northing
4955042.4
Elevation
1401.21 m
Azimuth
270.34 °
Dip
-54.57 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
30.5
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows moderate silver grades over a narrow length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Moderate silver grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“27.0”

Context: 15.24

HER-25-16Leviathan · silverGrade: 14.2Grade Unit: g/tIntercept: 18.29 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
14.2
Grade Unit
g/t
Intercept
18.29 m
From
816.86 m
To
835.15 m
Hole Depth
1068.32 m
Intercept Depth
816.86 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-16:816.86-835.15
Mining Method
open_pit

Location

Easting
512628.9
Northing
4955042.4
Elevation
1401.21 m
Azimuth
270.34 °
Dip
-54.57 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
15.4
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows low silver grades over a narrow length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“14.2”

Context: 18.29

HER-25-16Leviathan · silverGrade: 42.7Grade Unit: g/tIntercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
42.7
Grade Unit
g/t
Intercept
1.52 m
From
886.97 m
To
888.49 m
Hole Depth
1068.32 m
Intercept Depth
886.97 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-16:886.97-888.49
Mining Method
open_pit

Location

Easting
512628.9
Northing
4955042.4
Elevation
1401.21 m
Azimuth
270.34 °
Dip
-54.57 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
44.4
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows moderate silver grades over a very narrow length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Moderate silver grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“42.7”

Context: 1.52

HER-25-16Leviathan · silverGrade: 342Grade Unit: g/tIntercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
342
Grade Unit
g/t
Intercept
1.52 m
From
1011.94 m
To
1013.46 m
Hole Depth
1068.32 m
Intercept Depth
1011.94 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-16:1011.94-1013.46
Mining Method
open_pit

Location

Easting
512628.9
Northing
4955042.4
Elevation
1401.21 m
Azimuth
270.34 °
Dip
-54.57 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
342.5
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows strong silver grades over a very narrow length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Strong silver grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“342.0”

Context: 1.52

HER-25-22Leviathan · silverGrade: 7.5Grade Unit: g/tIntercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-22
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
7.5
Grade Unit
g/t
Intercept
71.63 m
From
396.24 m
To
467.87 m
Hole Depth
890.02 m
Intercept Depth
396.24 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-22:396.24-467.87
Mining Method
open_pit

Location

Easting
512644.6
Northing
4954738.73
Elevation
1397.09 m
Azimuth
214.96 °
Dip
-70.43 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
12.5
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows low silver grades over a good length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Good interval length

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“7.5”

Context: 71.63

HER-25-23Leviathan · silverGrade: 3.4Grade Unit: g/tIntercept: 268.22 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
3.4
Grade Unit
g/t
Intercept
268.22 m
From
167.64 m
To
435.86 m
Hole Depth
648.31 m
Intercept Depth
167.64 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-23:167.64-435.86
Mining Method
open_pit

Location

Easting
512417
Northing
4954325.97
Elevation
1267.92 m
Azimuth
220 °
Dip
-69.52 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
12.1
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance intercept shows low silver grades over a very long length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Very long interval length

Negative factors

  • Low silver grade
  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“3.4”

Context: 268.22

HER-25-23Leviathan · silverGrade: 7.8Grade Unit: g/tIntercept: 41.15 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
7.8
Grade Unit
g/t
Intercept
41.15 m
From
347.47 m
To
388.62 m
Hole Depth
648.31 m
Intercept Depth
347.47 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-23:347.47-388.62
Mining Method
open_pit

Location

Easting
512417
Northing
4954325.97
Elevation
1267.92 m
Azimuth
220 °
Dip
-69.52 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
33.4
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance sub-interval shows moderate silver grades over a good length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Moderate silver grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“7.8”

Context: 41.15

HER-25-23Leviathan · silverGrade: 10.1Grade Unit: g/tIntercept: 30.48 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
10.1
Grade Unit
g/t
Intercept
30.48 m
From
358.14 m
To
388.62 m
Hole Depth
648.31 m
Intercept Depth
358.14 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-23:358.14-388.62
Mining Method
open_pit

Location

Easting
512417
Northing
4954325.97
Elevation
1267.92 m
Azimuth
220 °
Dip
-69.52 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
41.6
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance sub-interval shows moderate silver grades over a good length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Moderate silver grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“10.1”

Context: 30.48

HER-25-23Leviathan · silverGrade: 24.8Grade Unit: g/tIntercept: 9.14 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
24.8
Grade Unit
g/t
Intercept
9.14 m
From
379.48 m
To
388.62 m
Hole Depth
648.31 m
Intercept Depth
379.48 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Group ID
HER-25-23:379.48-388.62
Mining Method
open_pit

Location

Easting
512417
Northing
4954325.97
Elevation
1267.92 m
Azimuth
220 °
Dip
-69.52 °
Loc. Confidence
high

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
98
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This reconnaissance sub-interval shows moderate silver and strong zinc grades over a narrow length, with undisclosed metal equivalent assumptions.

Positive factors

  • Reconnaissance drilling
  • Moderate silver grade
  • Strong zinc grade

Negative factors

  • Apparent Width Only
  • Cut-off Undisclosed
  • Metal Equivalent Opaque

Evidence · table

“24.8”

Context: 9.14

HER-25-06Leviathan · silverGrade: 257.2Grade Unit: g/tIntercept: 10.7 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
HER-25-06
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
257.2
Grade Unit
g/t
Intercept
10.7 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Mining Method
open_pit

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Metal Equivalent

Metal Eq. Grade
420.5
Metal Eq. Unit
g/t AgEq
Assumptions Disclosed
No

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This is a previously reported, high-grade silver intercept from reconnaissance drilling, with metal equivalent assumptions undisclosed.

Negative factors

  • Stale Data Re-release
  • Metal Equivalent Opaque
  • Cut-off Undisclosed
  • Apparent Width Only

Evidence · text

“10.7 m of 257.2 g/t Ag, 2.18% Pb, and 4.62% Zn (420.5 g/t AgEq)”
HER-25-06Leviathan · leadGrade: 2.18Grade Unit: %Intercept: 10.7 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
HER-25-06
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
2.18
Grade Unit
%
Intercept
10.7 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Mining Method
open_pit

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This is a previously reported, moderate-grade lead intercept from reconnaissance drilling.

Negative factors

  • Stale Data Re-release
  • Cut-off Undisclosed
  • Apparent Width Only

Evidence · text

“10.7 m of 257.2 g/t Ag, 2.18% Pb, and 4.62% Zn (420.5 g/t AgEq)”
HER-25-06Leviathan · zincGrade: 4.62Grade Unit: %Intercept: 10.7 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
HER-25-06
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
4.62
Grade Unit
%
Intercept
10.7 m

Classification

Deposit Type
porphyry
Program
exploration
Sample Type
drill
Mining Method
open_pit

QA/QC

Laboratory
MSA Labs
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, duplicates, blanks

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: This is a previously reported, moderate-grade zinc intercept from reconnaissance drilling.

Negative factors

  • Stale Data Re-release
  • Cut-off Undisclosed
  • Apparent Width Only

Evidence · text

“10.7 m of 257.2 g/t Ag, 2.18% Pb, and 4.62% Zn (420.5 g/t AgEq)”
HER-25-18Leviathan · moGrade: 95Grade Unit: ppmIntercept: 670.44 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
95
Grade Unit
ppm
Intercept
670.44 m
From
172.21 m
To
842.65 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-18:172.21-842.65
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 95 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

“95”

Context: HER-25-18

HER-25-18Leviathan · silverGrade: 4Grade Unit: g/tIntercept: 670.44 mView all details
Link to this fact

Identity

Hole ID
HER-25-18
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
4
Grade Unit
g/t
Intercept
670.44 m
From
172.21 m
To
842.65 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-18:172.21-842.65
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 4 g/t silver is moderate against the default band [500, 200, 100, 30] g/t. Grade×width 2681.8 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

“4.0”

Context: HER-25-18

IncludingLeviathan · copperGrade: 0.67Grade Unit: %Intercept: 212.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.67
Grade Unit
%
Intercept
212.81 m
From
188 m
To
400.81 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-400.81
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.67 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 142.6 %·m is moderate (grade alone is strong; the better of the two is used).

Positive factors

  • 0.67 % copper is strong on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.67”

Context: Including

IncludingLeviathan · moGrade: 128Grade Unit: ppmIntercept: 212.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
128
Grade Unit
ppm
Intercept
212.81 m
From
188 m
To
400.81 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-400.81
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 128 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

“128”

Context: Including

IncludingLeviathan · silverGrade: 10.2Grade Unit: g/tIntercept: 212.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
10.2
Grade Unit
g/t
Intercept
212.81 m
From
188 m
To
400.81 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-400.81
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 10.2 g/t silver is moderate against the default band [500, 200, 100, 30] g/t. Grade×width 2170.7 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

“10.2”

Context: Including

IncludingLeviathan · copperGrade: 1.06Grade Unit: %Intercept: 57.36 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.06
Grade Unit
%
Intercept
57.36 m
From
188 m
To
245.36 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-245.36
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.06 % copper is exceptional against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 60.8 %·m is moderate (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.06 % copper is exceptional on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.06”

Context: Including

IncludingLeviathan · moGrade: 112Grade Unit: ppmIntercept: 57.36 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
112
Grade Unit
ppm
Intercept
57.36 m
From
188 m
To
245.36 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-245.36
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 112 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

“112”

Context: Including

IncludingLeviathan · silverGrade: 3.6Grade Unit: g/tIntercept: 57.36 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
3.6
Grade Unit
g/t
Intercept
57.36 m
From
188 m
To
245.36 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:188-245.36
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 3.6 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 206.5 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

“3.6”

Context: Including

IncludingLeviathan · copperGrade: 0.49Grade Unit: %Intercept: 140.09 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.49
Grade Unit
%
Intercept
140.09 m
From
702.56 m
To
842.65 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:702.56-842.65
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.49 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 68.6 %·m is moderate (grade alone is strong; the better of the two is used).

Positive factors

  • 0.49 % copper is strong on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.49”

Context: Including

IncludingLeviathan · moGrade: 84Grade Unit: ppmIntercept: 140.09 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
84
Grade Unit
ppm
Intercept
140.09 m
From
702.56 m
To
842.65 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:702.56-842.65
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 84 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

“84”

Context: Including

IncludingLeviathan · silverGrade: 0.8Grade Unit: g/tIntercept: 140.09 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.8
Grade Unit
g/t
Intercept
140.09 m
From
702.56 m
To
842.65 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:702.56-842.65
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.8 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 112.1 g/t·m is below.

Negative factors

  • 0.8 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

“0.8”

Context: Including

HER-25-13Leviathan · moGrade: 17Grade Unit: ppmIntercept: 12.31 mView all details
Link to this fact

Identity

Hole ID
HER-25-13
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
17
Grade Unit
ppm
Intercept
12.31 m
From
289.56 m
To
301.87 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-13:289.56-301.87
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 17 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

“17”

Context: HER-25-13

HER-25-13Leviathan · silverGrade: 1.7Grade Unit: g/tIntercept: 12.31 mView all details
Link to this fact

Identity

Hole ID
HER-25-13
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.7
Grade Unit
g/t
Intercept
12.31 m
From
289.56 m
To
301.87 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-13:289.56-301.87
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.7 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 20.9 g/t·m is below.

Negative factors

  • 1.7 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

“1.7”

Context: HER-25-13

HER-25-14Leviathan · moGrade: 4Grade Unit: ppmIntercept: 6.09 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
4
Grade Unit
ppm
Intercept
6.09 m
From
399.29 m
To
405.38 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-14:399.29-405.38
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 4 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

“4”

Context: HER-25-14

HER-25-14Leviathan · silverGrade: 12.4Grade Unit: g/tIntercept: 6.09 mView all details
Link to this fact

Identity

Hole ID
HER-25-14
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
12.4
Grade Unit
g/t
Intercept
6.09 m
From
399.29 m
To
405.38 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-14:399.29-405.38
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 12.4 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 75.5 g/t·m is below.

Negative factors

  • 12.4 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

“12.4”

Context: HER-25-14

ANDLeviathan · copperGrade: 0.57Grade Unit: %Intercept: 10.66 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.57
Grade Unit
%
Intercept
10.66 m
From
478.54 m
To
489.2 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:478.54-489.2
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.57 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 6.1 %·m is below (grade alone is strong; the better of the two is used).

Positive factors

  • 0.57 % copper is strong on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.57”

Context: AND

ANDLeviathan · moGrade: 21Grade Unit: ppmIntercept: 10.66 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
21
Grade Unit
ppm
Intercept
10.66 m
From
478.54 m
To
489.2 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:478.54-489.2
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 21 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

“21”

Context: AND

ANDLeviathan · silverGrade: 1.1Grade Unit: g/tIntercept: 10.66 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.1
Grade Unit
g/t
Intercept
10.66 m
From
478.54 m
To
489.2 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:478.54-489.2
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.1 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 11.7 g/t·m is below.

Negative factors

  • 1.1 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

“1.1”

Context: AND

ANDLeviathan · copperGrade: 0.31Grade Unit: %Intercept: 235.98 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.31
Grade Unit
%
Intercept
235.98 m
From
541.26 m
To
777.24 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:541.26-777.24
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.31 % copper is moderate against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 73.2 %·m is moderate.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.31”

Context: AND

ANDLeviathan · moGrade: 95Grade Unit: ppmIntercept: 235.98 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
95
Grade Unit
ppm
Intercept
235.98 m
From
541.26 m
To
777.24 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:541.26-777.24
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 95 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

“95”

Context: AND

ANDLeviathan · silverGrade: 0.9Grade Unit: g/tIntercept: 235.98 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.9
Grade Unit
g/t
Intercept
235.98 m
From
541.26 m
To
777.24 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:541.26-777.24
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.9 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 212.4 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

“0.9”

Context: AND

IncludingLeviathan · copperGrade: 0.47Grade Unit: %Intercept: 76.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.47
Grade Unit
%
Intercept
76.81 m
From
638.56 m
To
715.37 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:638.56-715.37
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.47 % copper is strong against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 36.1 %·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 0.47 % copper is strong on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.47”

Context: Including

IncludingLeviathan · moGrade: 175Grade Unit: ppmIntercept: 76.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
175
Grade Unit
ppm
Intercept
76.81 m
From
638.56 m
To
715.37 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:638.56-715.37
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 175 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

“175”

Context: Including

IncludingLeviathan · silverGrade: 1.4Grade Unit: g/tIntercept: 76.81 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.4
Grade Unit
g/t
Intercept
76.81 m
From
638.56 m
To
715.37 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:638.56-715.37
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.4 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 107.5 g/t·m is below.

Negative factors

  • 1.4 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

“1.4”

Context: Including

HER-25-20Leviathan · moGrade: 35Grade Unit: ppmIntercept: 300.1 mView all details
Link to this fact

Identity

Hole ID
HER-25-20
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
35
Grade Unit
ppm
Intercept
300.1 m
From
158.62 m
To
458.72 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-20:158.62-458.72
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 35 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

“35”

Context: HER-25-20

HER-25-20Leviathan · silverGrade: 1.2Grade Unit: g/tIntercept: 300.1 mView all details
Link to this fact

Identity

Hole ID
HER-25-20
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.2
Grade Unit
g/t
Intercept
300.1 m
From
158.62 m
To
458.72 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-20:158.62-458.72
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.2 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 360.1 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

“1.2”

Context: HER-25-20

IncludingLeviathan · copperGrade: 1.55Grade Unit: %Intercept: 39.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
copper
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.55
Grade Unit
%
Intercept
39.5 m
From
158.62 m
To
198.12 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:158.62-198.12
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.55 % copper is exceptional against the porphyry deposit band [0.8, 0.4, 0.25, 0.15] %. Grade×width 61.2 %·m is moderate (grade alone is exceptional; the better of the two is used).

Positive factors

  • 1.55 % copper is exceptional on the porphyry deposit band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.55”

Context: Including

IncludingLeviathan · moGrade: 35Grade Unit: ppmIntercept: 39.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
mo
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
35
Grade Unit
ppm
Intercept
39.5 m
From
158.62 m
To
198.12 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:158.62-198.12
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table: 35 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

“35”

Context: Including

IncludingLeviathan · silverGrade: 2.4Grade Unit: g/tIntercept: 39.5 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
2.4
Grade Unit
g/t
Intercept
39.5 m
From
158.62 m
To
198.12 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:158.62-198.12
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 2.4 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 94.8 g/t·m is below.

Negative factors

  • 2.4 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

“2.4”

Context: Including

HER-25-16Leviathan · leadGrade: 0.14Grade Unit: %Intercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.14
Grade Unit
%
Intercept
71.63 m
From
574.55 m
To
646.18 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-16:574.55-646.18
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.14 % lead is weak against the default band [10, 6, 3, 1] %. Grade×width 10.0 %·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

“0.14”

Context: HER-25-16

HER-25-16Leviathan · zincGrade: 0.31Grade Unit: %Intercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-16
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.31
Grade Unit
%
Intercept
71.63 m
From
574.55 m
To
646.18 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-16:574.55-646.18
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.31 % zinc is weak against the default band [18, 10, 5, 2] %. Grade×width 22.2 %·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

“0.31”

Context: HER-25-16

ANDLeviathan · silverGrade: 27Grade Unit: g/tIntercept: 15.24 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
27
Grade Unit
g/t
Intercept
15.24 m
From
760.48 m
To
775.72 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:760.48-775.72
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 27 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 411.5 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

“27.0”

Context: AND

ANDLeviathan · zincGrade: 0.16Grade Unit: %Intercept: 15.24 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.16
Grade Unit
%
Intercept
15.24 m
From
760.48 m
To
775.72 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:760.48-775.72
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.16 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 2.4 %·m is below.

Negative factors

  • 0.16 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.16”

Context: AND

ANDLeviathan · silverGrade: 14.2Grade Unit: g/tIntercept: 18.29 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
14.2
Grade Unit
g/t
Intercept
18.29 m
From
816.86 m
To
835.15 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:816.86-835.15
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 14.2 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 259.7 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

“14.2”

Context: AND

ANDLeviathan · zincGrade: 0.06Grade Unit: %Intercept: 18.29 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.06
Grade Unit
%
Intercept
18.29 m
From
816.86 m
To
835.15 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:816.86-835.15
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.06 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 1.1 %·m is below.

Negative factors

  • 0.06 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.06”

Context: AND

ANDLeviathan · silverGrade: 42.7Grade Unit: g/tIntercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
42.7
Grade Unit
g/t
Intercept
1.52 m
From
886.97 m
To
888.49 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:886.97-888.49
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 42.7 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 64.9 g/t·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“42.7”

Context: AND

ANDLeviathan · zincGrade: 0.08Grade Unit: %Intercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.08
Grade Unit
%
Intercept
1.52 m
From
886.97 m
To
888.49 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:886.97-888.49
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.08 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 0.1 %·m is below.

Negative factors

  • 0.08 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.08”

Context: AND

ANDLeviathan · silverGrade: 342Grade Unit: g/tIntercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
342
Grade Unit
g/t
Intercept
1.52 m
From
1011.94 m
To
1013.46 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:1011.94-1013.46
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 342 g/t silver is strong against the default band [500, 200, 100, 30] g/t. Grade×width 519.8 g/t·m is weak (grade alone is strong; the better of the two is used).

Positive factors

  • 342 g/t silver is strong on the default band.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“342.0”

Context: AND

ANDLeviathan · zincGrade: 0.02Grade Unit: %Intercept: 1.52 mView all details
Link to this fact

Identity

Hole ID
AND
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.02
Grade Unit
%
Intercept
1.52 m
From
1011.94 m
To
1013.46 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
AND:1011.94-1013.46
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.02 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 0.0 %·m is below.

Negative factors

  • 0.02 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.02”

Context: AND

HER-25-22Leviathan · leadGrade: 0.02Grade Unit: %Intercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-22
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.02
Grade Unit
%
Intercept
71.63 m
From
396.24 m
To
467.87 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-22:396.24-467.87
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.02 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 1.4 %·m is below.

Negative factors

  • 0.02 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.02”

Context: HER-25-22

HER-25-22Leviathan · zincGrade: 0.2Grade Unit: %Intercept: 71.63 mView all details
Link to this fact

Identity

Hole ID
HER-25-22
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.2
Grade Unit
%
Intercept
71.63 m
From
396.24 m
To
467.87 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-22:396.24-467.87
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 14.3 %·m is below.

Negative factors

  • 0.2 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.20”

Context: HER-25-22

HER-25-23Leviathan · leadGrade: 0.04Grade Unit: %Intercept: 268.22 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.04
Grade Unit
%
Intercept
268.22 m
From
167.64 m
To
435.86 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-23:167.64-435.86
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.04 % lead is weak against the default band [10, 6, 3, 1] %. Grade×width 10.7 %·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

“0.04”

Context: HER-25-23

HER-25-23Leviathan · zincGrade: 0.36Grade Unit: %Intercept: 268.22 mView all details
Link to this fact

Identity

Hole ID
HER-25-23
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.36
Grade Unit
%
Intercept
268.22 m
From
167.64 m
To
435.86 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
HER-25-23:167.64-435.86
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.36 % zinc is moderate against the default band [18, 10, 5, 2] %. Grade×width 96.6 %·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

“0.36”

Context: HER-25-23

IncludingLeviathan · silverGrade: 7.8Grade Unit: g/tIntercept: 41.15 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
7.8
Grade Unit
g/t
Intercept
41.15 m
From
347.47 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:347.47-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 7.8 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 321.0 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

“7.8”

Context: Including

IncludingLeviathan · leadGrade: 0.12Grade Unit: %Intercept: 41.15 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.12
Grade Unit
%
Intercept
41.15 m
From
347.47 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:347.47-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.12 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 4.9 %·m is below.

Negative factors

  • 0.12 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.12”

Context: Including

IncludingLeviathan · zincGrade: 1.04Grade Unit: %Intercept: 41.15 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.04
Grade Unit
%
Intercept
41.15 m
From
347.47 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:347.47-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.04 % zinc is moderate against the default band [18, 10, 5, 2] %. Grade×width 42.8 %·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

“1.04”

Context: Including

IncludingLeviathan · silverGrade: 10.1Grade Unit: g/tIntercept: 30.48 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
10.1
Grade Unit
g/t
Intercept
30.48 m
From
358.14 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:358.14-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 10.1 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 307.8 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

“10.1”

Context: Including

IncludingLeviathan · leadGrade: 0.15Grade Unit: %Intercept: 30.48 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.15
Grade Unit
%
Intercept
30.48 m
From
358.14 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:358.14-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.15 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 4.6 %·m is below.

Negative factors

  • 0.15 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.15”

Context: Including

IncludingLeviathan · zincGrade: 1.28Grade Unit: %Intercept: 30.48 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
1.28
Grade Unit
%
Intercept
30.48 m
From
358.14 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:358.14-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 1.28 % zinc is weak against the default band [18, 10, 5, 2] %. Grade×width 39.0 %·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

“1.28”

Context: Including

IncludingLeviathan · silverGrade: 24.8Grade Unit: g/tIntercept: 9.14 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
silver
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
24.8
Grade Unit
g/t
Intercept
9.14 m
From
379.48 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:379.48-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 24.8 g/t silver is weak against the default band [500, 200, 100, 30] g/t. Grade×width 226.7 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

“24.8”

Context: Including

IncludingLeviathan · leadGrade: 0.37Grade Unit: %Intercept: 9.14 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
lead
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
0.37
Grade Unit
%
Intercept
9.14 m
From
379.48 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:379.48-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 0.37 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 3.4 %·m is below.

Negative factors

  • 0.37 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.37”

Context: Including

IncludingLeviathan · zincGrade: 2.97Grade Unit: %Intercept: 9.14 mView all details
Link to this fact

Identity

Hole ID
Including
Project
Leviathan
Commodity
zinc
Region
usa_id
Reported Region
Idaho
Ticker
BIG

Geometry

Grade
2.97
Grade Unit
%
Intercept
9.14 m
From
379.48 m
To
388.62 m

Classification

Deposit Type
porphyry
Sample Type
drill
Group ID
Including:379.48-388.62
Mining Method
open_pit

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-03-30T00:00:00.000Z

Reasoning: Expanded from assay table. 2.97 % zinc is weak against the default band [18, 10, 5, 2] %. Grade×width 27.1 %·m is weak.

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“2.97”

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.