# Riverside Resources Intersects Near-Surface Gold and Base Metal Mineralization at Union Norte and Advances Multiple Targets for Phase 2B Drilling Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e Original source: https://www.globenewswire.com/news-release/2026/09/09/3358329/0/en/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-at-union-norte-and-advances-multiple-targets-for-phase-2b-drilling.html Publisher: globenewswire Original announcement: 2026-09-09T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Riverside Resources Inc. - Ticker: RRI - Exchange: Unavailable - Region: Sonora, Mexico - Primary commodity: Gold - Secondary commodities: Silver, Copper, Lead, Zinc - Document categories: Drill results - Extracted: 2026-09-12 01:33:42 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Riverside Resources reported positive Phase 2A drill results at the Union Norte target, intersecting near-surface gold and base metal mineralization. The intercepts confirm a NNW-trending feeder structure, with the company planning to expand drilling in Phase 2B following the monsoon season. Reasoning: Positive near-surface gold and base metal intercepts at Union Norte confirm structural continuity, supported by robust QA/QC disclosure, though true widths remain unstated. - Positive factor: near-surface mineralization - Positive factor: continuity of feeder structure - Positive factor: QA/QC disclosed - Positive factor: positive base metal intercepts - Negative factor: true width unknown - Negative factor: drilling complications noted Facts used in scoring: 9 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: Release includes details on certified lab \(SGS\), QP sign-off \(Julian Manco\), and QA/QC methods \(blanks, standards, duplicates\). Evidence · text > The Company's QAQC program includes certified reference materials \(CRMs\), field blanks, and field duplicates **Apparent Width Only** Polarity: negative Definition: 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 ## Extracted facts Stored fact records: 9. Some facts used in scoring do not have a stored record. ## Drill Results (9) ### UND26-015 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-0) Union Norte · gold #### 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 - Intercept Depth: 1 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-015:1-15.6 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Significant near-surface intercept confirming structural continuity. - Positive factor: near-surface Evidence · table > 0.45 Context: 14.60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-015 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-1) Union Norte · gold #### 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 - Intercept Depth: 1 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-015:8-13.6 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Stronger grade within the main interval. - Positive factor: higher-grade subset Evidence · table > 0.96 Context: 5.60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-015 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-2) Union Norte · gold #### 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 - Intercept Depth: 1 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-015:8-12.6 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Stronger grade within the main interval. - Positive factor: higher-grade subset Evidence · table > 1.09 Context: 4.60 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-015 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-3) Union Norte · gold #### 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 - Intercept Depth: 1 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-015:9.6-12.6 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Stronger grade within the main interval. - Positive factor: higher-grade subset Evidence · table > 1.10 Context: 3.00 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-014 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-4) Union Norte · gold #### 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 - Intercept Depth: 1.9 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-014:1.9-11 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Confirms near-surface mineralized feeder structure. - Positive factor: near-surface Evidence · table > 0.76 Context: 9.10 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-014 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-5) Union Norte · gold #### 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 - Intercept Depth: 1.9 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-014:1.9-2.6 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High grade subset within the interval. - Positive factor: higher-grade subset Evidence · table > 1.97 Context: 0.70 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-014 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-6) Union Norte · gold #### 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 - Intercept Depth: 1.9 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-014:4.5-11 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Standard intercept within the interval. Evidence · table > 0.84 Context: 6.50 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-014 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-7) Union Norte · gold #### 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 - Intercept Depth: 1.9 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-014:6.5-11 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: Higher grade subset within the interval. - Positive factor: higher-grade subset Evidence · table > 1.18 Context: 4.50 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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" ### UND26-014 [Link to this fact](https://atlas-extractions.minestarters.com/news/riverside-resources-intersects-near-surface-gold-and-base-metal-mineralization-a--d5020bc4-116a-4425-8e15-ea2c2c9aa41e#fact-drill-facts-8) Union Norte · gold #### 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 - Intercept Depth: 1.9 m #### Classification - Program: exploration - Sample Type: drill - Group ID: UND26-014:9.5-11 - Mining Method: unknown #### Location - Loc. Confidence: high #### 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 #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-09T00:00:00.000Z Reasoning: High-grade subset within the interval. - Positive factor: high-grade subset Evidence · table > 3.38 Context: 1.50 #### Tags used in scoring **QA/QC Disclosed** Polarity: positive Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated **Nearology Play** Polarity: neutral Definition: 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.