# Barksdale Continues to Delineate the Copper Porphyry System at Sunnyside, and Provides a Drilling and Results Update - Connecting the Upper and Lower Porphyry Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5 Original source: https://money.tmx.com/en/quote/BRO/news/4545407569386316/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro Publisher: tmx Original announcement: 2026-07-20T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Barksdale Resources Corp. - Ticker: BRO - Exchange: TSX - Region: Southern Arizona - Primary commodity: Copper - Secondary commodities: Silver, Zinc, Lead, Gold, Manganese - Document categories: Drill results, Other - Extracted: 2026-09-15 14:39:47 UTC Narrative sentiment: -0.20 · Bearish ## Minestarters Atlas summary Barksdale Resources has released assay results from 10 step-out reverse circulation holes at the Sunnyside copper-gold-silver project. While the results show declining copper grades as drilling moves away from the high-grade core, they confirm a classic porphyry metal zonation pattern. The company is also preparing for a major diamond drill program in Fall 2026. Reasoning: The release reports step-out drilling that shows declining copper grades compared to initial high-grade intercepts, though it successfully defines a predictable porphyry zonation pattern. - Positive factor: Confirms continuous copper mineralization to 1,000m depth - Positive factor: Identifies clear geochemical zonation patterns typical of large porphyries - Positive factor: QA/QC protocols and lab certification disclosed - Negative factor: Step-out holes failed to duplicate high-grade proximal intercepts - Negative factor: Copper grades declining in step-out zones - Negative factor: Heavy water inflows caused two holes to fail to reach planned depth Facts used in scoring: 9 ## Classification and evidence No classification tags are available. ## Extracted facts Stored fact records: 9. Some facts used in scoring do not have a stored record. ## Drill Results (9) ### SUN26-013R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-0) Sunnyside · copper #### Identity - Hole ID: SUN26-013R - Project: Sunnyside - Commodity: copper - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 0.3 - Grade Unit: % - Intercept: 77.7 m - From: 187.5 m - To: 265.2 m - Intercept Depth: 187.5 m #### Classification - Sample Type: drill - Group ID: SUN26-013R:187.5-265.2 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: A wide but low-grade copper intercept in a step-out zone. - Positive factor: Significant width of 77.7m - Negative factor: Relatively low grade for a porphyry highlight Evidence · text > 0.3% Cu over 77.7 m from 187.5 m hole depth #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-013R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-1) Sunnyside · copper #### Identity - Hole ID: SUN26-013R - Project: Sunnyside - Commodity: copper - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 1.93 - Grade Unit: % - Intercept: 7.6 m - From: 187.5 m - To: 195.1 m - Intercept Depth: 187.5 m #### Classification - Sample Type: drill - Group ID: SUN26-013R:187.5-195.1 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: A strong high-grade inclusion within a larger lower-grade intercept. - Positive factor: High-grade sub-interval Evidence · text > including 1.93% Cu over 7.6 m from 187.5 m in SUN26-013R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-010R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-2) Sunnyside · copper #### Identity - Hole ID: SUN26-010R - Project: Sunnyside - Commodity: copper - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 0.32 - Grade Unit: % - Intercept: 12.2 m - From: 228.6 m - To: 240.8 m - Intercept Depth: 228.6 m #### Classification - Sample Type: drill - Group ID: SUN26-010R:228.6-240.8 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Routine low-grade intercept. Evidence · text > 0.32% Cu over 12.2 m from 228.6 m hole depth in SUN26-010R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-011R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-3) Sunnyside · copper #### Identity - Hole ID: SUN26-011R - Project: Sunnyside - Commodity: copper - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 0.3 - Grade Unit: % - Intercept: 4.6 m - From: 620 m - To: 624.6 m - Intercept Depth: 620 m #### Classification - Sample Type: drill - Group ID: SUN26-011R:620-624.6 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Routine low-grade intercept. Evidence · text > 0.3% Cu over 4.6 m from 620 ft hole depth in SUN26-011R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-007R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-4) Sunnyside · silver #### Identity - Hole ID: SUN26-007R - Project: Sunnyside - Commodity: silver - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 2 - Grade Unit: g/t - Intercept: 182.88 m - From: 5 m - To: 187.88 m - Intercept Depth: 5 m #### Classification - Sample Type: drill - Group ID: SUN26-007R:5-187.88 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Wide silver intercept, but grade is low. - Positive factor: Very wide intercept Evidence · text > 2.0 g/t Ag over 182.88 m from 5 m hole depth in SUN26-007R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-012R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-5) Sunnyside · silver #### Identity - Hole ID: SUN26-012R - Project: Sunnyside - Commodity: silver - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 4.59 - Grade Unit: g/t - Intercept: 91.44 m - From: 15.2 m - To: 106.64 m - Intercept Depth: 15.2 m #### Classification - Sample Type: drill - Group ID: SUN26-012R:15.2-106.64 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Decent silver intercept with a higher grade core. - Positive factor: Includes a higher grade zone Evidence · text > 4.59 g/t Ag over 91.44 m from a depth of 15.2, including 36.58 m grading 8.77 g/t Ag from a depth of 18.3 m in SUN26-012R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-009R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-6) Sunnyside · silver #### Identity - Hole ID: SUN26-009R - Project: Sunnyside - Commodity: silver - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 1.62 - Grade Unit: g/t - Intercept: 111.25 m - From: 189 m - To: 300.25 m - Intercept Depth: 189 m #### Classification - Sample Type: drill - Group ID: SUN26-009R:189-300.25 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Routine silver intercept. Evidence · text > 1.62 g/t Ag and 0.058 g/t Au over 111.25 m from 189 m hole depth in SUN26-009R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### SUN26-009R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-7) Sunnyside · gold #### Identity - Hole ID: SUN26-009R - Project: Sunnyside - Commodity: gold - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 0.058 - Grade Unit: g/t - Intercept: 111.25 m - From: 189 m - To: 300.25 m - Intercept Depth: 189 m #### Classification - Sample Type: drill - Group ID: SUN26-009R:189-300.25 - Mining Method: open\_pit #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: Trace gold intercept. Evidence · text > 1.62 g/t Ag and 0.058 g/t Au over 111.25 m from 189 m hole depth in SUN26-009R #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ### 021R [Link to this fact](https://atlas-extractions.minestarters.com/news/barksdale-continues-to-delineate-the-copper-porphyry-system-at-sunnyside-and-pro--dfbc23d0-0d6c-4d73-98a4-c505f277c4a5#fact-drill-facts-8) Sunnyside · silver #### Identity - Hole ID: 021R - Project: Sunnyside - Commodity: silver - Region: usa\_az - Reported Region: usa\_az - Ticker: BRO #### Geometry - Grade: 8.77 - Grade Unit: g/t - Intercept: 36.58 m - From: 189 m - To: 225.58 m #### Classification - Sample Type: drill #### QA/QC - Laboratory: Skyline Assayers & Laboratories - 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: 2026-07-20T00:00:00.000Z Reasoning: A wide but low-grade copper intercept in a step-out zone. - Positive factor: Significant width of 77.7m - Negative factor: Relatively low grade for a porphyry highlight Evidence · text > 36.58 m grading 8.77 g/t Ag from a depth of 18.3 m in SUN26-012R 1.62 g/t Ag and 0.058 g/t Au over 111.25 m from 189 m #### 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: "Recent Copper and Silver Highlights: 0.3% Cu over 77.7 m from 187.5 m hole depth, including 1.93% Cu over 7.6 m from 187" ## 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.