Altamira Gold Drills 134m @ 0.5 g/t Gold and Trenches 114m @ 0.7 g/t Gold at the Maria Bonita Gold Deposit, Cajueiro Gold District, Brazil

Original announcement by jmn on

Company
Altamira Gold Corp.
Ticker
ALTA
Exchange
TSXV
Region
Brazil
Primary commodity
Gold
Secondary commodities
None reported
Document categories
Drill results, Other
Extracted
2026-10-08 12:46:46 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

Altamira Gold reported new drill and trench results at the Maria Bonita Gold Deposit in Brazil, including a 134m @ 0.5 g/t gold intercept in hole MBA045 and a 114m @ 0.7 g/t gold interval in trench TCMBA05. These results, received after the recent Mineral Resource update, highlight the potential to expand the existing resource and delineate higher-grade near-surface mineralization.

Reasoning: The results provide new drill and trench intercepts that lie within the recently expanded Mineral Resource footprint, supporting the potential for resource expansion and near-surface oxide mineralization.

Positive factors

  • wide intervals of gold mineralization
  • potential to expand near-surface mineralization
  • drill hole ended in mineralization
  • QA/QC protocols disclosed

Negative factors

  • grades are relatively low compared to project averages

Facts used in scoring: 6

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 details QA/QC procedures including field duplicates, standards, and blanks.

Evidence · text

“includes the insertion of field duplicates, independent certified reference materials and blank samples”

Infill Drillingneutral

Confirmatory drilling to raise resource confidence, not new discovery.

Why it applies: CEO mentions potential to enhance resources through future infill drilling.

Evidence · text

“indicating the potential to further enhance the existing gold resources through future infill drilling”

Extracted facts

Stored fact records: 6. Some facts used in scoring do not have a stored record.

Drill Results (6)

MBA045Maria Bonita West · goldGrade: 0.4Grade Unit: g/tIntercept: 87 mView all details
Link to this fact

Identity

Hole ID
MBA045
Project
Maria Bonita West
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.4
Grade Unit
g/t
Intercept
87 m
From
0 m
To
87 m
Intercept Depth
0 m

Classification

Sample Type
drill
Group ID
MBA045:0-87
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A broad near-surface intercept of 87m at 0.4 g/t gold.

Positive factors

  • broad interval from surface

Negative factors

  • low grade

Evidence · text

“87m @ 0.4g/t gold from surface”

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

MBA045Maria Bonita West · goldGrade: 0.3Grade Unit: g/tIntercept: 52 mView all details
Link to this fact

Identity

Hole ID
MBA045
Project
Maria Bonita West
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
52 m
From
155 m
To
207 m
Intercept Depth
155 m

Classification

Sample Type
drill
Group ID
MBA045:155-207
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A 52m intercept at 0.3 g/t gold.

Negative factors

  • low grade

Evidence · text

“52m @ 0.3g/t gold from 155m downhole”

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

MBA045Maria Bonita West · goldGrade: 0.5Grade Unit: g/tIntercept: 134 mView all details
Link to this fact

Identity

Hole ID
MBA045
Project
Maria Bonita West
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.5
Grade Unit
g/t
Intercept
134 m
From
215 m
To
349 m
Intercept Depth
215 m

Classification

Sample Type
drill
Group ID
MBA045:215-349
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A significant 134m intercept at 0.5 g/t gold that remains open at depth.

Positive factors

  • broad interval
  • open at depth

Evidence · text

“134m @ 0.5g/t gold from 215m to the bottom of the hole at 349m”

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

TCMBA05Maria Bonita · goldGrade: 0.7Grade Unit: g/tIntercept: 114 mView all details
Link to this fact

Identity

Hole ID
TCMBA05
Project
Maria Bonita
Commodity
gold
Region
brazil
Reported Region
Brazil
Ticker
ALTA

Geometry

Grade
0.7
Grade Unit
g/t
Intercept
114 m

Classification

Sample Type
channel
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
duplicates, standards, blanks, check_assays

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A wide 114m trench intercept at 0.7 g/t gold.

Positive factors

  • wide interval
  • near-surface potential

Evidence · text

“114m @ 0.7g/t gold”

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

TCMBA05Maria Bonita · goldGrade: 1.3Grade Unit: g/tIntercept: 36 mView all details
Link to this fact

Identity

Hole ID
TCMBA05
Project
Maria Bonita
Commodity
gold
Region
brazil
Reported Region
Brazil
Ticker
ALTA

Geometry

Grade
1.3
Grade Unit
g/t
Intercept
36 m

Classification

Sample Type
channel
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
duplicates, standards, blanks, check_assays

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A higher-grade 36m sub-interval within the trench.

Positive factors

  • higher grade sub-interval

Evidence · text

“36m @ 1.3g/t gold”

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

MBA044Maria Bonita West · goldGrade: 0.3Grade Unit: g/tIntercept: 7.2 mView all details
Link to this fact

Identity

Hole ID
MBA044
Project
Maria Bonita West
Commodity
gold
Region
brazil
Reported Region
brazil
Ticker
ALTA

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
7.2 m

Classification

Sample Type
drill
Mining Method
open_pit

Location

Location
Maria Bonita
Loc. Source
document

QA/QC

Laboratory
SGS Geosol
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-10-08T00:00:00.000Z

Reasoning: A weak 7.2m intercept at 0.3 g/t gold.

Negative factors

  • weak gold values

Evidence · text

“7.2m @ 0.3 g/t gold”

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.