Riverside Resources Intersects Near-Surface Gold and Base Metal Mineralization at Union Norte and Advances Multiple Targets for Phase 2B Drilling

Original announcement by investingnews on

Company
Riverside Resources Inc.
Ticker
RRI
Exchange
CSE
Region
Sonora, Mexico
Primary commodity
Gold
Secondary commodities
Silver, Copper, Lead, Zinc
Document categories
Drill results
Extracted
2026-09-09 08:04:44 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Riverside Resources reported positive Phase 2A drill results from the Union Norte and Union Mine targets in Sonora, Mexico. The program intersected near-surface gold-equivalent mineralization and base metals, confirming the continuity of interpreted feeder structures.

Reasoning: Phase 2A drilling successfully intersected near-surface gold-equivalent mineralization at Union Norte, confirming structural continuity and expanding the exploration footprint.

Positive factors

  • near-surface mineralization
  • continuity of feeder structure
  • QA/QC disclosed
  • positive base metal intercepts

Negative factors

  • true width unknown
  • drilling complications noted

Facts used in scoring: 9

Atlas analysis — Riverside Resources Inc.: Riverside Resources Intersects Near-Surface Gold and Base Metal Mineralization at Union Norte and Advances Multiple Targets for Phase 2B Drilling. 0.76 g/t over 9.1 m; 0.45 g/t over 14.6 m

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 includes QA/QC disclosure including certified lab (SGS), QP sign-off (Julian Manco, P.Geo), and stated methods (blanks, standards, duplicates).

Evidence · text

“The Company's QAQC program includes certified reference materials (CRMs), field blanks, and field duplicates inserted at regular intervals throughout each sample batch.”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: True thickness of mineralization is explicitly stated as unknown.

Evidence · text

“True thickness of mineralization is unknown as the Company is still conducting exploration”

Mill Routeneutral

Processing via mill or concentrator (CIL, CIP, tank leach, flotation).

Why it applies: the document describes a mill_cil route ("CIL")

Extracted facts

Stored fact records: 9. Some facts used in scoring do not have a stored record.

Drill Results (9)

UND26-015Union Norte · goldGrade: 0.45Grade Unit: g/tIntercept: 14.6 mView all details
Link to this fact

Identity

Hole ID
UND26-015
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
0.45
Grade Unit
g/t
Intercept
14.6 m
From
1 m
To
15.6 m
Hole Depth
69.6 m
Intercept Depth
1 m

Classification

Sample Type
drill
Group ID
UND26-015:1-15.6
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
320 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
0.45
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Intercepts near-surface gold-equivalent mineralization in a feeder structure.

Positive factors

  • near-surface

Negative factors

  • true width unknown

Evidence · text

“UND26-015 at the Union Norte target returned 14.60 m of 0.45 g/t Au Eq starting at 1.0 m”

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-015Union Norte · goldGrade: 0.96Grade Unit: g/tIntercept: 5.6 mView all details
Link to this fact

Identity

Hole ID
UND26-015
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
0.96
Grade Unit
g/t
Intercept
5.6 m
From
8 m
To
13.6 m
Hole Depth
69.6 m
Intercept Depth
1 m

Classification

Sample Type
drill
Group ID
UND26-015:8-13.6
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
320 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
0.96
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Higher grade sub-interval within UND26-015.

Positive factors

  • higher grade subset

Evidence · table

“0.96”

Context: 5.60

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-015Union Norte · goldGrade: 1.09Grade Unit: g/tIntercept: 4.6 mView all details
Link to this fact

Identity

Hole ID
UND26-015
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
1.09
Grade Unit
g/t
Intercept
4.6 m
From
8 m
To
12.6 m
Hole Depth
69.6 m
Intercept Depth
1 m

Classification

Sample Type
drill
Group ID
UND26-015:8-12.6
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
320 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
1.09
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Higher grade sub-interval within UND26-015.

Positive factors

  • higher grade subset

Evidence · table

“1.09”

Context: 4.60

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-015Union Norte · goldGrade: 1.1Grade Unit: g/tIntercept: 3 mView all details
Link to this fact

Identity

Hole ID
UND26-015
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
1.1
Grade Unit
g/t
Intercept
3 m
From
9.6 m
To
12.6 m
Hole Depth
69.6 m
Intercept Depth
1 m

Classification

Sample Type
drill
Group ID
UND26-015:9.6-12.6
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
320 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
1.1
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Higher grade sub-interval within UND26-015.

Positive factors

  • higher grade subset

Evidence · table

“1.10”

Context: 3.00

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-014Union Norte · goldGrade: 0.76Grade Unit: g/tIntercept: 9.1 mView all details
Link to this fact

Identity

Hole ID
UND26-014
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
0.76
Grade Unit
g/t
Intercept
9.1 m
From
1.9 m
To
11 m
Hole Depth
63.5 m
Intercept Depth
1.9 m

Classification

Sample Type
drill
Group ID
UND26-014:1.9-11
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
30 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
0.76
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Intercepts near-surface gold-equivalent mineralization in a feeder structure.

Positive factors

  • near-surface

Negative factors

  • true width unknown

Evidence · text

“UND26-014 at the Union Norte target returned 9.10 m of 0.76 g/t Au Eq from 1.90 m”

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-014Union Norte · goldGrade: 1.97Grade Unit: g/tIntercept: 0.7 mView all details
Link to this fact

Identity

Hole ID
UND26-014
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
1.97
Grade Unit
g/t
Intercept
0.7 m
From
1.9 m
To
2.6 m
Hole Depth
63.5 m
Intercept Depth
1.9 m

Classification

Sample Type
drill
Group ID
UND26-014:1.9-2.6
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
30 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
1.97
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: High grade subset within UND26-014.

Positive factors

  • high grade subset

Evidence · table

“1.97”

Context: 0.70

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-014Union Norte · goldGrade: 0.84Grade Unit: g/tIntercept: 6.5 mView all details
Link to this fact

Identity

Hole ID
UND26-014
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
0.84
Grade Unit
g/t
Intercept
6.5 m
From
4.5 m
To
11 m
Hole Depth
63.5 m
Intercept Depth
1.9 m

Classification

Sample Type
drill
Group ID
UND26-014:4.5-11
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
30 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
0.84
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Sub-interval within UND26-014.

Evidence · table

“0.84”

Context: 6.50

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-014Union Norte · goldGrade: 1.18Grade Unit: g/tIntercept: 4.5 mView all details
Link to this fact

Identity

Hole ID
UND26-014
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
1.18
Grade Unit
g/t
Intercept
4.5 m
From
6.5 m
To
11 m
Hole Depth
63.5 m
Intercept Depth
1.9 m

Classification

Sample Type
drill
Group ID
UND26-014:6.5-11
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
30 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
1.18
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: Higher grade sub-interval within UND26-014.

Positive factors

  • higher grade subset

Evidence · table

“1.18”

Context: 4.50

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

UND26-014Union Norte · goldGrade: 3.38Grade Unit: g/tIntercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
UND26-014
Project
Union Norte
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
RRI

Geometry

Grade
3.38
Grade Unit
g/t
Intercept
1.5 m
From
9.5 m
To
11 m
Hole Depth
63.5 m
Intercept Depth
1.9 m

Classification

Sample Type
drill
Group ID
UND26-014:9.5-11
Mining Method
unknown

Location

Location
Union Norte
Easting
376169
Northing
3347610
Elevation
400 m
Azimuth
30 °
Dip
-70 °
Loc. Confidence
high
Loc. Source
document

QA/QC

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

Metal Equivalent

Metal Eq. Grade
3.38
Metal Eq. Unit
g/t Au Eq
Assumptions Disclosed
Yes

Compositing

Cutoff Grade
0.1
Cutoff Unit
g/t Au Eq

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

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

Reasoning: High grade subset within UND26-014.

Positive factors

  • high grade subset

Evidence · table

“3.38”

Context: 1.50

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

Nearology Playneutral

Value premise rests on proximity to a known deposit rather than own results.

Why it applies: proximity is offered as the value premise: "An IP survey at the project included lines at Jabali and Luis Hill with targets delineated as chargeability highs for bo"

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.