ONGold Announces Updated Mineral Resource Estimate for the Monument Bay Gold Project, Manitoba

Original announcement by prospectors_exchange on

Company
ONGold Resources Ltd.
Ticker
ONAU
Exchange
Unavailable
Region
Manitoba
Primary commodity
Gold
Secondary commodities
Tungsten
Document categories
Drill results, Resource update
Extracted
2026-09-16 17:03:47 UTC

Analysis by Minestarters Atlas

Atlas analysis published:

Minestarters Atlas analysis

Summary

ONGold Resources has announced an updated Mineral Resource Estimate for the Monument Bay Gold Project in Manitoba, effective July 31, 2026. The update reports 74.39 Mt at 0.84 g/t Au (Measured and Indicated) and 24.46 Mt at 0.62 g/t Au (Inferred), totaling approximately 2.5 million ounces of gold. The release also highlights significant tungsten potential identified through recent re-logging and assaying of historical samples.

Reasoning: Significant update to a 2.5 Moz gold resource with high M&I confidence and new tungsten potential.

Positive factors

  • Substantial M&I resource (80% of total)
  • Updated geological model improves understanding
  • Identified potential for tungsten resource expansion
  • Open at depth and along strike

Negative factors

  • Tungsten not included in current MRE
  • Relies on historical data for some components

Facts used in scoring: 5

Classification and evidence

NI 43-101 Compliantpositive

Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.

Why it applies: The MRE was prepared in accordance with NI 43-101 standards.

Evidence · text

“in accordance with... National Instrument 43-101”

Maiden Resourceneutral

First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.

Why it applies: The release describes an updated MRE, but the context of 'updated' and 'historical' suggests it is a revision of an existing resource rather than a maiden one.

Evidence · text

“announces an updated Mineral Resource Estimate”

Extracted facts

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

Drill Results (3)

TL16-575Monument Bay · goldGrade: 163.92Grade Unit: g/tIntercept: 2.75 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
TL16-575
Project
Monument Bay
Commodity
gold
Region
canada_mb
Reported Region
canada_mb
Ticker
ONAU

Geometry

Grade
163.92
Grade Unit
g/t
Intercept
2.75 m
From
171.25 m
To
174 m
Intercept Depth
171.25 m

Classification

Sample Type
drill
Group ID
TL16-575:171.25-174

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes
Historical Source Date
2026-03-02T00:00:00.000Z

Dates

Event date
2026-09-14T00:00:00.000Z

Reasoning: Exceptional grade intercept, though historical.

Positive factors

  • Extremely high grade

Negative factors

  • Historical data

Evidence · text

“163.92 g/t Au over 2.75 metres”

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

TL16-575Monument Bay · goldGrade: 6.15Grade Unit: g/tIntercept: 132 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
TL16-575
Project
Monument Bay
Commodity
gold
Region
canada_mb
Reported Region
canada_mb
Ticker
ONAU

Geometry

Grade
6.15
Grade Unit
g/t
Intercept
132 m
From
151 m
To
283 m
Intercept Depth
151 m

Classification

Sample Type
drill
Group ID
TL16-575:151-283

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes
Historical Source Date
2026-03-02T00:00:00.000Z

Dates

Event date
2026-09-14T00:00:00.000Z

Reasoning: Significant historical intercept.

Positive factors

  • Strong grade over long width

Negative factors

  • Historical data

Evidence · text

“6.15 g/t Au over a core length of 132.0 metres”

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

TL-20-714Monument Bay · tungstenGrade: 4590Grade Unit: ppmIntercept: 0.55 mHistorical resultNeeds review: historical_restatementView all details
Link to this fact

Identity

Hole ID
TL-20-714
Project
Monument Bay
Commodity
tungsten
Region
canada_mb
Reported Region
canada_mb
Ticker
ONAU

Geometry

Grade
4590
Grade Unit
ppm
Intercept
0.55 m
From
131.9 m
To
132.45 m
Intercept Depth
131.9 m

Classification

Sample Type
drill
Group ID
TL-20-714:131.9-132.45

QA/QC

QA/QC Disclosed
Yes
QP Signed
Yes

Review

Needs Review
Yes
Review Reason
historical_restatement
Interp. Status
scored
Historical
Yes
Historical Source Date
2020-01-01T00:00:00.000Z

Dates

Event date
2026-09-14T00:00:00.000Z

Reasoning: New tungsten assay from historical sample.

Positive factors

  • High grade tungsten

Evidence · table

“4,590”

Context: A0770622

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

Resource Estimates (2)

indicatedMonument Bay · goldTonnes: 74390000Grade: 0.84Grade Unit: g/tContained Metal: 2Contained Unit: mozView all details
Link to this fact

Identity

Project
Monument Bay
Commodity
gold
Region
canada_mb
Reported Region
Manitoba
Ticker
ONAU

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Souvik Banerjee
Resource group id
resource:15c5ec4851af40b6b1a3
Deposit or zone
Monument Bay
Mining method
open_pit
Resource basis
gross

Resource Data

Category
indicated
Tonnes
74390000
Grade
0.84
Grade Unit
g/t
Contained Metal
2
Contained Unit
moz
Cutoff Grade
0.2
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2026-07-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-14T00:00:00.000Z

Reasoning: Strong M&I component for an open-pit gold project.

Positive factors

  • High M&I percentage (80% of total ounces)
  • NI 43-101 compliant

Evidence · text

“74.39 million tonnes at 0.84 g/t Au containing 2.0 million ounces of gold”

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

inferredMonument Bay · goldTonnes: 24460000Grade: 0.62Grade Unit: g/tContained Metal: 0.49Contained Unit: mozView all details
Link to this fact

Identity

Project
Monument Bay
Commodity
gold
Region
canada_mb
Reported Region
Manitoba
Ticker
ONAU

Resource scope

Estimate type
resource
Reporting standards
ni_43_101
QP Signed
Yes
Qualified person names
Souvik Banerjee
Resource group id
resource:3ce6e6deaeeb9927f58c
Deposit or zone
Monument Bay
Mining method
open_pit
Resource basis
gross

Resource Data

Category
inferred
Tonnes
24460000
Grade
0.62
Grade Unit
g/t
Contained Metal
0.49
Contained Unit
moz
Cutoff Grade
0.2
Cutoff Unit
g/t Au

Prior Estimate

Resource Date
2026-07-31

Review

Needs Review
No
Historical
No

Dates

Event date
2026-09-14T00:00:00.000Z

Reasoning: Standard inferred component of a resource update.

Negative factors

  • Inferred category represents higher geological risk

Evidence · text

“24.46 million tonnes at 0.62 g/t Au containing 0.49 million ounces of gold”

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

QP/CP Signedpositive

Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.

Why it applies: qp_signed is true

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

Resource Updateneutral

Revised estimate for an existing resource — compare to prior to assess progress.

Why it applies: the release compares against a previous estimate

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.