Mammoth reveals parallel high-grade gold zone at Buster Trend in Nevada
Original announcement by stockhead on
- Company
- Mammoth Minerals
- Ticker
- M79
- Exchange
- Unavailable
- Region
- Nevada
- Primary commodity
- Gold
- Secondary commodities
- Silver, Lead, Zinc, Antimony
- Document categories
- Drill results, Other
- Extracted
- 2026-08-31 03:04:14 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Mammoth Minerals has discovered a new high-grade gold zone at the Lunchbox Ridge area of the Excelsior Springs project in Nevada, parallel to the main Buster Gold Mine. Recent RC drilling returned 10.67m at 3.76g/t Au, while surface sampling at the Blue Dick prospect has yielded bonanza silver and gold grades.
Reasoning: Discovery of a new parallel high-grade gold trend at Lunchbox Ridge via step-out drilling, alongside exceptional surface sampling results at Blue Dick.
Positive factors
- Step-out drilling discovered a new parallel high-grade gold zone
- Bonanza silver grades from surface sampling
- Mineralisation remains open along strike and down-dip
Facts used in scoring: 18
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling at Lunchbox Ridge expanded known mineralisation along a parallel structure.
Evidence · text
“This expands known mineralisation along a parallel structure”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: Surface sampling returned exceptional silver grades of up to 3877g/t Ag.
Evidence · text
“returning exceptional results such as 3877g/t Ag”
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: Antimony (0.65%) was reported in surface samples.
Evidence · text
“0.65% antimony”
Extracted facts
Stored fact records: 18. Some facts used in scoring do not have a stored record.
Drill Results (18)
MEXRC2637Excelsior Springs · goldGrade: 3.76Grade Unit: g/tIntercept: 10.67 mView all detailsHide details
Identity
- Hole ID
- MEXRC2637
- Project
- Excelsior Springs
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- M79
Geometry
- Grade
- 3.76
- Grade Unit
- g/t
- Intercept
- 10.67 m
- From
- 198.2 m
- To
- 208.87 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- MEXRC2637:198.2-208.87
- Mining Method
- underground
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Strong gold intercept from a new parallel structure.
Positive factors
- Step-out drilling into a previously untested feature
Evidence · text
“10.67m grading 3.76g/t Au from a down-hole depth of 198.2m”
MEXRC2637Excelsior Springs · goldGrade: 6.86Grade Unit: g/tIntercept: 4.6 mView all detailsHide details
Identity
- Hole ID
- MEXRC2637
- Project
- Excelsior Springs
- Commodity
- gold
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- M79
Geometry
- Grade
- 6.86
- Grade Unit
- g/t
- Intercept
- 4.6 m
- From
- 199.7 m
- To
- 204.3 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- MEXRC2637:199.7-204.3
- Mining Method
- underground
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: High-grade inclusion within the main intercept.
Positive factors
- High-grade sub-interval
Evidence · text
“including 4.6m at 6.86g/t from 199.7m in hole MEXRC2637”
Fact 3silverGrade: 1190Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- M79
Geometry
- Grade
- 1190
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Exceptional silver grade from surface sampling.
Positive factors
- Bonanza silver grades
Evidence · text
“1190g/t Ag”
Fact 4goldGrade: 4.7Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- M79
Geometry
- Grade
- 4.7
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: High-grade gold from surface sampling.
Evidence · text
“4.7g/t Au”
Fact 5leadGrade: 4.55Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- M79
Geometry
- Grade
- 4.55
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Significant lead grade from surface sampling.
Evidence · text
“4.55% lead”
Fact 6silverGrade: 891Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- M79
Geometry
- Grade
- 891
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: High silver grade from surface sampling.
Evidence · text
“891g/t Ag”
Fact 7goldGrade: 10.7Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- M79
Geometry
- Grade
- 10.7
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Strong gold grade from surface sampling.
Evidence · text
“10.7g/t Au”
Fact 8leadGrade: 1.7Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- M79
Geometry
- Grade
- 1.7
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Lead grade from surface sampling.
Evidence · text
“1.7% Pb”
Fact 9zincGrade: 3.7Grade Unit: %View all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- M79
Geometry
- Grade
- 3.7
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Zinc grade from surface sampling.
Evidence · text
“3.7% zinc”
Fact 10silverGrade: 708Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- M79
Geometry
- Grade
- 708
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: High silver grade from surface sampling.
Evidence · text
“708g/t Ag”
Fact 11goldGrade: 9.6Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- M79
Geometry
- Grade
- 9.6
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Strong gold grade from surface sampling.
Evidence · text
“9.6g/t Au”
Fact 12leadGrade: 2.1Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- M79
Geometry
- Grade
- 2.1
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Lead grade from surface sampling.
Evidence · text
“2.1% Pb”
Fact 13zincGrade: 5.4Grade Unit: %View all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- M79
Geometry
- Grade
- 5.4
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Zinc grade from surface sampling.
Evidence · text
“5.4% Zn”
Fact 14silverGrade: 3877Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- M79
Geometry
- Grade
- 3877
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Exceptional bonanza silver grade from surface sampling.
Positive factors
- Exceptional silver grade
Evidence · text
“3877g/t Ag”
Fact 15goldGrade: 2.3Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- M79
Geometry
- Grade
- 2.3
- Grade Unit
- g/t
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Gold grade from surface sampling.
Evidence · text
“2.3g/t Au”
Fact 16leadGrade: 4.1Grade Unit: %View all detailsHide details
Identity
- Commodity
- lead
- Ticker
- M79
Geometry
- Grade
- 4.1
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Lead grade from surface sampling.
Evidence · text
“4.1% Pb”
Fact 17antimonyGrade: 0.65Grade Unit: %View all detailsHide details
Identity
- Commodity
- antimony
- Ticker
- M79
Geometry
- Grade
- 0.65
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Presence of antimony noted in surface samples.
Negative factors
- Deleterious element present
Evidence · text
“0.65% antimony”
Fact 18zincGrade: 2.3Grade Unit: %View all detailsHide details
Identity
- Commodity
- zinc
- Ticker
- M79
Geometry
- Grade
- 2.3
- Grade Unit
- %
Classification
- Sample Type
- surface
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-31T00:00:00.000Z
Reasoning: Zinc grade from surface sampling.
Evidence · text
“2.3% Zn”
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.