Corvus Gold Begins Phase II Exploration Drill Program, North Bullfrog Project, Nevada
Original announcement by tmx on
- Company
- Corvus Gold Inc.
- Ticker
- KOR
- Exchange
- TSX
- Region
- Nevada
- Primary commodity
- Gold
- Secondary commodities
- Silver, Mercury
- Document categories
- Resource update, Drill results
- Extracted
- 2026-09-16 07:45:18 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Corvus Gold has launched an 8,000-metre Phase II RC drill program at the North Bullfrog Project in Nevada, targeting both resource expansion in the west and new discoveries in the Eastern Steam-heated Zone. The company also provided a detailed summary of its existing NI 43-101 compliant mineral resources for both mill and heap leach processing.
Reasoning: The announcement details the commencement of a significant 8,000m drill program targeting resource expansion and new discoveries, supported by a substantial existing NI 43-101 compliant resource.
Positive factors
- Large scale resource expansion potential
- High-grade discovery targets identified
- Comprehensive NI 43-101 compliant resource disclosure
Negative factors
- Mercury values noted in some systems
Facts used in scoring: 15
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details specific QA/QC protocols including blind certified standards, blanks, and duplicate samples sent to ALS Chemex.
Evidence · text
“Quality control is monitored by the insertion of blind certified standard reference materials and blanks into each sample shipment.”
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: The resource estimates are explicitly stated to be prepared in accordance with NI 43-101 standards.
Evidence · text
“all resource estimates contained in or incorporated by reference in this press release have been prepared in accordance with NI 43-101”
Maiden Resourceneutral
First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component. No prior estimate exists, so every change band is not applicable.
Why it applies: The document describes the Phase II program as testing new targets and expanding existing resources, but does not explicitly label the current resource as a maiden resource.
Evidence · text
“The two pronged phase II drill program will focus on the evaluation of near-term high-grade resource expansion in the west and new large deposit discovery potential in the east.”
Extracted facts
Stored fact records: 15. Some facts used in scoring do not have a stored record.
Drill Results (3)
NB-13-366North Bullfrog · goldGrade: 1.03Grade Unit: g/tIntercept: 20 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- NB-13-366
- Project
- North Bullfrog
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- KOR
Geometry
- Grade
- 1.03
- Grade Unit
- g/t
- Intercept
- 20 m
Classification
- Sample Type
- drill
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-01-09T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical intercept mentioned as part of program context.
Evidence · text
“20m of 1.03 g/t Au”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "The project has excellent infrastructure, being adjacent to a major highway and power corridor as well as a large water "
NB-13-366North Bullfrog · goldGrade: 1.26Grade Unit: g/tIntercept: 17.5 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- NB-13-366
- Project
- North Bullfrog
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- KOR
Geometry
- Grade
- 1.26
- Grade Unit
- g/t
- Intercept
- 17.5 m
Classification
- Sample Type
- drill
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-01-09T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical intercept mentioned as part of program context.
Evidence · text
“17.5m @ 1.26 g/t Au”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "The project has excellent infrastructure, being adjacent to a major highway and power corridor as well as a large water "
Rhyolite VeinNorth Bullfrog · goldGrade: 3.3Grade Unit: g/tIntercept: 11.3 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- Rhyolite Vein
- Project
- North Bullfrog
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- KOR
Geometry
- Grade
- 3.3
- Grade Unit
- g/t
- Intercept
- 11.3 m
Classification
- Sample Type
- drill
QA/QC
- QA/QC Disclosed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2014-09-04T00:00:00.000Z
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Historical high-grade intercept.
Evidence · text
“Rhyolite Vein 11.3m @ 3.3 g/t Au”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "The project has excellent infrastructure, being adjacent to a major highway and power corridor as well as a large water "
Resource Estimates (12)
measuredNorth Bullfrog Project · goldTonnes: 3860000Grade: 2.55Grade Unit: g/tContained Metal: 316500Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:7abec524203c7ae2e386
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 3860000
- Grade
- 2.55
- Grade Unit
- g/t
- Contained Metal
- 316500
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Measured resource component of the mill process resource.
Evidence · text
“measured mineral resource of 3.86 Mt at an average grade of 2.55 g/t gold and 19.70 g/t silver, containing 316.5k ounces of gold and 2,445k ounces of silver”
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
measuredNorth Bullfrog Project · silverTonnes: 3860000Grade: 19.7Grade Unit: g/tContained Metal: 2445000Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:7abec524203c7ae2e386
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 3860000
- Grade
- 19.7
- Grade Unit
- g/t
- Contained Metal
- 2445000
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Measured resource component of the mill process resource.
Evidence · text
“19.70 g/t silver, containing ... 2,445k ounces of silver”
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
indicatedNorth Bullfrog Project · goldTonnes: 1810000Grade: 1.53Grade Unit: g/tContained Metal: 89100Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:abb81901ba7896794b2c
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 1810000
- Grade
- 1.53
- Grade Unit
- g/t
- Contained Metal
- 89100
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Indicated resource component of the mill process resource.
Evidence · text
“indicated mineral resource of 1.81 Mt at an average grade of 1.53 g/t gold, and 10.20 g/t silver, containing 89.1k ounces of gold and 593.6k ounces of silver”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
indicatedNorth Bullfrog Project · silverTonnes: 1810000Grade: 10.2Grade Unit: g/tContained Metal: 593600Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:abb81901ba7896794b2c
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 1810000
- Grade
- 10.2
- Grade Unit
- g/t
- Contained Metal
- 593600
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Indicated resource component of the mill process resource.
Evidence · text
“10.20 g/t silver, containing ... 593.6k ounces of silver”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNorth Bullfrog Project · goldTonnes: 1480000Grade: 0.83Grade Unit: g/tContained Metal: 39500Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:66b30b76b24886f916bc
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 1480000
- Grade
- 0.83
- Grade Unit
- g/t
- Contained Metal
- 39500
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Inferred resource component of the mill process resource.
Evidence · text
“inferred resource of 1.48 Mt at an average grade of 0.83 g/t gold and 4.26 g/t silver, containing 39.5k ounces of gold and 202.7k ounces of silver”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNorth Bullfrog Project · silverTonnes: 1480000Grade: 4.26Grade Unit: g/tContained Metal: 202700Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:66b30b76b24886f916bc
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 1480000
- Grade
- 4.26
- Grade Unit
- g/t
- Contained Metal
- 202700
- Contained Unit
- oz
- Cutoff Grade
- 0.52
- Cutoff Unit
- g/t gold
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Inferred resource component of the mill process resource.
Evidence · text
“4.26 g/t silver, containing ... 202.7k ounces of silver”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
measuredNorth Bullfrog Project · goldTonnes: 300000Grade: 0.25Grade Unit: g/tContained Metal: 2400Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:853facfc23fd1cddeee8
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 300000
- Grade
- 0.25
- Grade Unit
- g/t
- Contained Metal
- 2400
- Contained Unit
- oz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Measured resource component of the heap leach process resource.
Evidence · text
“measured mineral resource of 0.3 Mt at an average grade of 0.25 g/t gold and 2.76 g/t silver, containing 2.4k ounces of gold and 26.6k ounces of silver”
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
measuredNorth Bullfrog Project · silverTonnes: 300000Grade: 2.76Grade Unit: g/tContained Metal: 26600Contained Unit: ozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:853facfc23fd1cddeee8
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- measured
- Tonnes
- 300000
- Grade
- 2.76
- Grade Unit
- g/t
- Contained Metal
- 26600
- Contained Unit
- oz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Measured resource component of the heap leach process resource.
Evidence · text
“2.76 g/t silver, containing ... 26.6k ounces of silver”
Tags used in scoring
Measured Resourcepositive
Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
Why it applies: category is "measured"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
indicatedNorth Bullfrog Project · goldTonnes: 22860000Grade: 0.3Grade Unit: %Contained Metal: 220500Contained Unit: kozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:a92b47d3ecb3216c8b9a
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 22860000
- Grade
- 0.3
- Grade Unit
- %
- Contained Metal
- 220500
- Contained Unit
- koz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Indicated resource component of the heap leach process resource.
Evidence · text
“indicated mineral resource of 22.86 Mt at an average grade of 0.30 g/t gold and 0.43 g/t silver, containing 220.5k ounces of gold and 316.1k ounces of silver”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
indicatedNorth Bullfrog Project · silverTonnes: 22860000Grade: 0.43Grade Unit: g/tContained Metal: 316100Contained Unit: kozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:a92b47d3ecb3216c8b9a
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- indicated
- Tonnes
- 22860000
- Grade
- 0.43
- Grade Unit
- g/t
- Contained Metal
- 316100
- Contained Unit
- koz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Indicated resource component of the heap leach process resource.
Evidence · text
“0.43 g/t silver, containing ... 316.1k ounces of silver”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNorth Bullfrog Project · goldTonnes: 176300000Grade: 0.19Grade Unit: g/tContained Metal: 1077400Contained Unit: kozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:34e9b18e2894de283d9a
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 176300000
- Grade
- 0.19
- Grade Unit
- g/t
- Contained Metal
- 1077400
- Contained Unit
- koz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Inferred resource component of the heap leach process resource.
Evidence · text
“inferred mineral resource of 176.3 Mt at an average grade of 0.19 g/t gold and 0.67 g/t silver, containing 1,077.4k ounces of gold and 3,799.2k ounces of silver”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
inferredNorth Bullfrog Project · silverTonnes: 176300000Grade: 0.67Grade Unit: g/tContained Metal: 3799200Contained Unit: kozView all detailsHide details
Identity
- Project
- North Bullfrog Project
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- KOR
Resource scope
- Estimate type
- resource
- Reporting standards
- ni_43_101
- Resource group id
- resource:34e9b18e2894de283d9a
- Deposit or zone
- North Bullfrog
- Material type
- oxide
- Resource basis
- gross
Resource Data
- Category
- inferred
- Tonnes
- 176300000
- Grade
- 0.67
- Grade Unit
- g/t
- Contained Metal
- 3799200
- Contained Unit
- koz
- Cutoff Grade
- 0.15
- Cutoff Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-11T00:00:00.000Z
Reasoning: Inferred resource component of the heap leach process resource.
Evidence · text
“0.67 g/t silver, containing ... 3,799.2k ounces of silver”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Disclosedpositive
Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
Why it applies: cutoff_grade is stated
NI 43-101 Compliantpositive
Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
Why it applies: reporting_standards includes ni_43_101
PEA-Supportingneutral
Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
Why it applies: the release names the study this estimate supports
PFS-Supportingneutral
Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
Why it applies: the release names the study this estimate supports
DFS-Supportingneutral
Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
Why it applies: the release names the study this estimate supports
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.