Radisson Reports Highest-Ever Assay Result at O'Brien: 1,604 g/t (1.60 kg/t) Gold over 1.0 Metre Within 316 g/t Gold over 5.1 Metres

Original announcement by tmx on

Company
Radisson Mining Resources Inc.
Ticker
RDS
Exchange
TSX
Region
Abitibi, Québec
Primary commodity
Gold
Secondary commodities
None reported
Document categories
Drill results, Other
Extracted
2026-09-16 18:33:33 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Radisson Mining Resources reported a record-setting gold intercept of 1,604 g/t Au over 1.0 metre at the O'Brien Gold Project. The result, found in hole OB-26-385W4, suggests a new high-grade mineralized zone within the Pontiac Formation that lies outside the current mineral resource footprint.

Reasoning: The announcement reports a record-breaking gold intercept that suggests a new high-grade domain outside the existing mineral resource, significantly de-risking the exploration potential of the Pontiac formation.

Positive factors

  • Highest-ever assay result (1,604 g/t Au) reported
  • Discovery of potentially new high-grade zone in Pontiac rocks outside current resource scope
  • Successful step-out drilling confirming deep extension of mineralization
  • High success rate (100%) for the current drill holes

Facts used in scoring: 6

Classification and evidence

Bonanza Interceptpositive

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

Why it applies: 1,604 g/t Au is exceptionally high for the deposit type.

Evidence · text

“1,603.95 grams per tonne ("g/t") gold ("Au") over 1 metre”

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Drilling is part of an ongoing 140,000 metre step-out program targeting deep extensions.

Evidence · text

“ongoing 140,000 metre step-out drill program”

QA/QC Disclosedpositive

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

Why it applies: Release details MSALABS accreditation, use of CRMs, blanks, and duplicates.

Evidence · text

“MSALABS operates under ISO/IEC 17025 accreditation”

Extracted facts

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

Drill Results (6)

OB-26-385W4O'Brien · goldGrade: 316.31Grade Unit: g/tIntercept: 5.1 mView all details
Link to this fact

Identity

Hole ID
OB-26-385W4
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
316.31
Grade Unit
g/t
Intercept
5.1 m
From
823 m
To
828.1 m
Intercept Depth
823 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-385W4:823-828.1
Mining Method
underground

Location

Location
O'Brien Mine East
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Significant high-grade intercept in a new geological domain.

Positive factors

  • High-grade intercept within a larger mineralized interval
  • Potential for new high-grade zone outside current resource

Evidence · text

“OB-26-385W4 intersected 316.31 g/t Au over 5.1 metres (core length) including 1,603.95 g/t Au over 1.0 metre”

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

OB-26-385W4O'Brien · goldGrade: 1603.95Grade Unit: g/tIntercept: 1 mView all details
Link to this fact

Identity

Hole ID
OB-26-385W4
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
1603.95
Grade Unit
g/t
Intercept
1 m
From
823 m
To
824 m
Intercept Depth
823 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-385W4:823-824
Mining Method
underground

Location

Location
O'Brien Mine East
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Record-breaking grade intercept.

Positive factors

  • Highest-ever assay result for the project

Evidence · text

“1,603.95 g/t Au over 1.0 metre”

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

OB-26-385W4O'Brien · goldGrade: 3.97Grade Unit: g/tIntercept: 5 mView all details
Link to this fact

Identity

Hole ID
OB-26-385W4
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
3.97
Grade Unit
g/t
Intercept
5 m
From
823 m
To
828 m
Intercept Depth
823 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-385W4:823-828
Mining Method
underground

Location

Location
O'Brien Mine East
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Lower grade component of the larger intercept.

Evidence · text

“3.97 g/t Au over 5.0 metres including 10.47 g/t Au over 1.3 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

OB-26-384W1O'Brien · goldGrade: 46.22Grade Unit: g/tIntercept: 3.9 mView all details
Link to this fact

Identity

Hole ID
OB-26-384W1
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
46.22
Grade Unit
g/t
Intercept
3.9 m
From
1600 m
To
1603.9 m
Intercept Depth
1600 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-384W1:1600-1603.9
Mining Method
underground

Location

Location
Trend #1
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Strong high-grade intercept confirming deep extension.

Positive factors

  • Confirms deep extension of Trend #1

Evidence · text

“OB-26-384W1 intersected 46.22 g/t Au over 3.9 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

OB-26-384W1O'Brien · goldGrade: 132.28Grade Unit: g/tIntercept: 1.3 mView all details
Link to this fact

Identity

Hole ID
OB-26-384W1
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
132.28
Grade Unit
g/t
Intercept
1.3 m
From
1600 m
To
1601.3 m
Intercept Depth
1600 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-384W1:1600-1601.3
Mining Method
underground

Location

Location
Trend #1
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Significant high-grade intercept.

Positive factors

  • High-grade component

Evidence · text

“including 132.28 g/t Au over 1.3 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

OB-26-386W3O'Brien · goldGrade: 8.6Grade Unit: g/tIntercept: 2.6 mView all details
Link to this fact

Identity

Hole ID
OB-26-386W3
Project
O'Brien
Commodity
gold
Region
canada_qc
Reported Region
canada_qc
Ticker
RDS

Geometry

Grade
8.6
Grade Unit
g/t
Intercept
2.6 m

Classification

Deposit Type
other
Program
exploration
Sample Type
drill
Group ID
OB-26-386W3:0-2.6
Mining Method
underground

Location

Location
Trend #1-Trend #2 Gap
Loc. Source
document

QA/QC

Laboratory
MSALABS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-07-07T00:00:00.000Z

Reasoning: Solid intercept in a target gap area.

Positive factors

  • Mineralization in previously under-drilled gap

Evidence · text

“OB-26-386W3 intersected 8.60 g/t Au over 2.6 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

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.