Mammoth Reports 39.0 Metres Grading 1.2 g/t Gold Equivalent from Diamond Drilling at its Tenoriba Gold-Silver Property, Mexico

Original announcement by tmx on

Company
Mammoth Resources Corp.
Ticker
MTH
Exchange
TSX
Region
Mexico
Primary commodity
Gold
Secondary commodities
Silver, Copper
Document categories
Drill results
Extracted
2026-09-18 11:16:41 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Mammoth Resources Corp. has reported drill results from the final six holes of its 27-hole program at the Tenoriba gold-silver property in Mexico. The results include significant gold-silver intercepts, notably 39.0m at 1.22 g/t gold equivalent in the Masuparia area, supporting a bulk open-pit and heap leach mining scenario.

Reasoning: The release reports successful step-out drilling that intersects potentially economical gold-silver mineralization across multiple targets, supporting an open-pit/heap leach scenario.

Positive factors

  • Step-out drilling successful in testing new targets up to 0.5km from prior drilling
  • Intercepts of potentially economical mineralization (tens of metres) across all three project areas
  • High-grade gold-silver intercepts in Masuparia area (5.28 g/t Au)
  • Mineralization remains open beyond the 4km strike length

Negative factors

  • Some holes abandoned short of target depth due to broken ground/tightening rods

Facts used in scoring: 5

Classification and evidence

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Company stated they stepped-out up to half a kilometre from prior drilling to test new targets.

Evidence · text

“we stepped-out up to half a kilometre from prior drilling to test new targets”

QA/QC Disclosedpositive

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

Why it applies: Release discloses use of ALS laboratories, insertion of blanks and duplicates, and QP sign-off.

Evidence · text

“Samples referenced in this press release were prepared and analyzed by ALS laboratories (ALS)”

Bonanza Interceptpositive

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

Why it applies: The 5.28 g/t Au intercept in TEN 21-24 is strong for an epithermal/open-pit target.

Evidence · table

“5.28”

Context: 3.0

Extracted facts

Stored fact records: 5. Some facts used in scoring do not have a stored record.

Drill Results (5)

TEN 21-22Drill Hole TEN 21-22 Drill Hole TEN 21-22 was collared in the epithermal HS gold-silver mineralized · goldGrade: 0.98Grade Unit: g/tIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
TEN 21-22
Project
Drill Hole TEN 21-22 Drill Hole TEN 21-22 was collared in the epithermal HS gold-silver mineralized
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
MTH

Geometry

Grade
0.98
Grade Unit
g/t
Intercept
3 m
From
12 m
To
15 m
Hole Depth
71.7 m
Intercept Depth
12 m

Classification

Deposit Type
epithermal
Program
resource
Sample Type
drill
Group ID
TEN 21-22:12-15
Mining Method
open_pit

Location

Location
Carneritos
Azimuth
130 °
Dip
-65 °
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2022-12-15T00:00:00.000Z

Reasoning: Routine intercept in a known mineralized zone.

Evidence · table

“0.98”

Context: 3.0

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

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill_program_type is "resource"

TEN 21-22Drill Hole TEN 21-22 Drill Hole TEN 21-22 was collared in the epithermal HS gold-silver mineralized · silverGrade: 10Grade Unit: g/tIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
TEN 21-22
Project
Drill Hole TEN 21-22 Drill Hole TEN 21-22 was collared in the epithermal HS gold-silver mineralized
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
MTH

Geometry

Grade
10
Grade Unit
g/t
Intercept
3 m
From
12 m
To
15 m
Hole Depth
71.7 m
Intercept Depth
12 m

Classification

Deposit Type
epithermal
Program
resource
Sample Type
drill
Group ID
TEN 21-22:12-15
Mining Method
open_pit

Location

Location
Carneritos
Azimuth
130 °
Dip
-65 °
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2022-12-15T00:00:00.000Z

Reasoning: Routine silver intercept.

Evidence · table

“10.0”

Context: 3.0

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

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill_program_type is "resource"

TEN 21-24Tenoriba · goldGrade: 1.14Grade Unit: g/tIntercept: 39 mView all details
Link to this fact

Identity

Hole ID
TEN 21-24
Project
Tenoriba
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
MTH

Geometry

Grade
1.14
Grade Unit
g/t
Intercept
39 m
From
54 m
To
91.5 m
Hole Depth
176.9 m
Intercept Depth
9 m

Classification

Deposit Type
epithermal
Program
resource
Sample Type
drill
Group ID
TEN 21-24:54-91.5
Mining Method
open_pit

Location

Location
Masuparia
Azimuth
15 °
Dip
-55 °
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2022-12-15T00:00:00.000Z

Reasoning: Strong intercept in terms of both grade and width.

Positive factors

  • Significant width of 39m
  • Consistent with potentially economical mineralization

Evidence · table

“1.14”

Context: 39.0

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

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill_program_type is "resource"

TEN 21-24Tenoriba · silverGrade: 5.4Grade Unit: g/tIntercept: 39 mView all details
Link to this fact

Identity

Hole ID
TEN 21-24
Project
Tenoriba
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
MTH

Geometry

Grade
5.4
Grade Unit
g/t
Intercept
39 m
From
54 m
To
91.5 m
Hole Depth
176.9 m
Intercept Depth
9 m

Classification

Deposit Type
epithermal
Program
resource
Sample Type
drill
Group ID
TEN 21-24:54-91.5
Mining Method
open_pit

Location

Location
Masuparia
Azimuth
15 °
Dip
-55 °
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2022-12-15T00:00:00.000Z

Reasoning: Secondary metal in a significant intercept.

Evidence · table

“5.4”

Context: 39.0

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

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill_program_type is "resource"

TEN 21-24Tenoriba · goldGrade: 5.28Grade Unit: g/tIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
TEN 21-24
Project
Tenoriba
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
MTH

Geometry

Grade
5.28
Grade Unit
g/t
Intercept
3 m
From
55 m
To
57 m
Hole Depth
176.9 m
Intercept Depth
9 m

Classification

Deposit Type
epithermal
Program
resource
Sample Type
drill
Group ID
TEN 21-24:55-57
Mining Method
open_pit

Location

Location
Masuparia
Azimuth
15 °
Dip
-55 °
Loc. Source
document

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2022-12-15T00:00:00.000Z

Reasoning: Bonanza-style grade for this deposit type.

Positive factors

  • High grade intercept

Evidence · table

“5.28”

Context: 3.0

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

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: drill_program_type is "resource"

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.