Lion Copper and Gold Corp. Announces Positive Mason Valley Exploration Results
Original announcement by tmx on
- Company
- Lion Copper and Gold Corp.
- Ticker
- LEO
- Exchange
- TSX
- Region
- Nevada
- Primary commodity
- Copper
- Secondary commodities
- None reported
- Document categories
- Drill results, Other
- Extracted
- 2026-09-18 07:18:23 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Lion Copper and Gold Corp. has reported positive surface trenching results at the Mason Pass prospect in Nevada, encountering ore-grade copper oxide mineralization. The program identified several high-grade intercepts, including 20 ft at 0.70% TCu in Trench 1, with mineralization appearing to be open in multiple directions.
Reasoning: Positive surface trenching results at a new prospect (Mason Pass) showing ore-grade copper oxide mineralization, supported by robust QA/QC disclosure.
Positive factors
- At-surface ore-grade copper oxide mineralization encountered
- Mineralization remains open and untested in most directions
- QA/QC protocols (standards, blanks, chain of custody) clearly disclosed
- QP sign-off provided
Facts used in scoring: 8
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: Release includes details on standards, blanks, and chain of custody.
Evidence · text
“Commercially prepared standards and blanks were inserted by the Company at 50-ft intervals”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: New mineralization identified at Mason Pass prospect near existing MacArthur pit.
Evidence · text
“The Mason Pass prospect is an at-surface copper oxide target located approximately 1.5 miles south-southwest of the MacArthur pit”
Extracted facts
Stored fact records: 8. Some facts used in scoring do not have a stored record.
Drill Results (8)
Trench 4Mason Pass · copperGrade: 0.28Grade Unit: %Intercept: 60.96 mView all detailsHide details
Identity
- Hole ID
- Trench 4
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.28
- Grade Unit
- %
- Intercept
- 60.96 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Significant width intercept of 200 ft at 0.28% TCu.
Evidence · text
“200 ft of 0.28% TCu”
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
Trench 4Mason Pass · copperGrade: 0.22Grade Unit: %Intercept: 9.14 mView all detailsHide details
Identity
- Hole ID
- Trench 4
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.22
- Grade Unit
- %
- Intercept
- 9.14 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: High-grade narrow intercept within Trench 4.
Evidence · text
“30 ft of 0.22% TCu”
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
Trench 4Mason Pass · copperGrade: 0.14Grade Unit: %Intercept: 173.15 mView all detailsHide details
Identity
- Hole ID
- Trench 4
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.14
- Grade Unit
- %
- Intercept
- 173.15 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Average grade for the full length of Trench 4.
Evidence · text
“averages 0.14% TCu over the full length of the trench (568 ft)”
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
Trench 1Mason Pass · copperGrade: 0.7Grade Unit: %Intercept: 6.1 mView all detailsHide details
Identity
- Hole ID
- Trench 1
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.7
- Grade Unit
- %
- Intercept
- 6.1 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Strong grade intercept of 0.70% TCu.
Positive factors
- High grade intercept
Evidence · text
“20 ft of 0.70% TCu”
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
Trench 1Mason Pass · copperGrade: 0.34Grade Unit: %Intercept: 27.43 mView all detailsHide details
Identity
- Hole ID
- Trench 1
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.34
- Grade Unit
- %
- Intercept
- 27.43 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Solid grade intercept within Trench 1.
Evidence · text
“90 ft of 0.34% TCu”
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
Trench 1Mason Pass · copperGrade: 0.14Grade Unit: %Intercept: 118.87 mView all detailsHide details
Identity
- Hole ID
- Trench 1
- Project
- Mason Pass
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.14
- Grade Unit
- %
- Intercept
- 118.87 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Average grade for the full length of Trench 1.
Evidence · text
“averages 0.14% TCu over 390 ft”
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
Trench 2The Mason Pass prospect was first identified by Company geologists through geologic mapping of outcropping copper oxide mineralization occurring within the Singatse fault · copperGrade: 0.2Grade Unit: %Intercept: 15.24 mView all detailsHide details
Identity
- Hole ID
- Trench 2
- Project
- The Mason Pass prospect was first identified by Company geologists through geologic mapping of outcropping copper oxide mineralization occurring within the Singatse fault
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.2
- Grade Unit
- %
- Intercept
- 15.24 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Intercept of 0.20% TCu in Trench 2.
Evidence · text
“50 ft of 0.20% TCu”
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
Trench 2The Mason Pass prospect was first identified by Company geologists through geologic mapping of outcropping copper oxide mineralization occurring within the Singatse fault · copperGrade: 0.08Grade Unit: %Intercept: 109.12 mView all detailsHide details
Identity
- Hole ID
- Trench 2
- Project
- The Mason Pass prospect was first identified by Company geologists through geologic mapping of outcropping copper oxide mineralization occurring within the Singatse fault
- Commodity
- copper
- Region
- usa_nv
- Reported Region
- usa_nv
- Ticker
- LEO
Geometry
- Grade
- 0.08
- Grade Unit
- %
- Intercept
- 109.12 m
Classification
- Sample Type
- channel
QA/QC
- QA/QC Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-12-13T00:00:00.000Z
Reasoning: Lower average grade for Trench 2.
Evidence · text
“averages 0.08% TCu over 358 ft”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.