# First-Ever Drill Hole at Excalibur Intersects Long Intervals of Alteration and Sulphide Mineralization Consistent with A New Porphyry System Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/first-ever-drill-hole-at-excalibur-intersects-long-intervals-of-alteration-and-s--d0f93343-3515-4e34-9527-9df1b68f96f9 Original source: https://www.accessnewswire.com/newsroom/en/metals-and-mining/first-ever-drill-hole-at-excalibur-intersects-long-intervals-of-alteration-and-su-1219122 Publisher: accesswire Original announcement: 2026-09-11T23:56:23.932Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Prospect Ridge Resources Corp. - Ticker: PRR - Exchange: Unavailable - Region: British Columbia - Primary commodity: Copper - Secondary commodities: Gold, Molybdenum - Document categories: Drill results, Other - Extracted: 2026-09-12 00:02:58 UTC Narrative sentiment: 0.60 · Bullish ## Minestarters Atlas summary Prospect Ridge Resources Corp. has completed the first phase of its 2026 maiden drill campaign at the Excalibur copper-gold porphyry project in British Columbia. The two holes drilled \(EXC26-001 and EXC26-002\) intersected significant hydrothermal alteration and sulphide mineralization consistent with a porphyry system, though formal assay results are still outstanding. Reasoning: The release reports the first drill results from a new project, showing encouraging visual evidence of a porphyry system, though actual grades are pending assay. - Positive factor: First-ever drill holes at Excalibur project - Positive factor: Visual confirmation of porphyry-style alteration and sulphide mineralization - Positive factor: Significant intercept length \(515m\) in EXC26-001 - Positive factor: Location within known Babine porphyry belt - Negative factor: No assay results reported yet - Negative factor: Visual observations are qualitative and not quantitative - Negative factor: Mineralization is described as 'patchy' or 'variable' in some intervals Facts used in scoring: 3 ## 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 mentions samples sent to ALS Minerals and a Qualified Person \(Ron Voordouw\) sign-off. Evidence · text > one half sent to ALS Minerals for geochemical assay... approved by Ron Voordouw, Ph.D., P.Geo. **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: Project is located within the Babine porphyry belt near past-producing mines like Bell and Granisle. Evidence · text > located within British Columbia's Babine porphyry belt, near the past-producing Bell, and Granisle mines ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Drill Results (3) ### EXC26-001 [Link to this fact](https://atlas-extractions.minestarters.com/news/first-ever-drill-hole-at-excalibur-intersects-long-intervals-of-alteration-and-s--d0f93343-3515-4e34-9527-9df1b68f96f9#fact-drill-facts-0) Excalibur · gold #### Identity - Hole ID: EXC26-001 - Project: Excalibur - Commodity: gold - Region: canada\_bc - Reported Region: canada\_bc - Ticker: PRR #### Geometry - Intercept: 515 m - From: 0 m - To: 515 m - Hole Depth: 515 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: EXC26-001:0-515 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: ALS Minerals - QP Signed: Yes - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: First-ever hole at the project showing significant porphyry-style alteration over its entire 515m length. - Positive factor: Long interval of alteration and sulphide mineralization - Negative factor: Visual observations only; no assay grades provided Evidence · text > Hole EXC26-001 intersected 515 meters of variably intense hydrothermal alteration and pyrite-dominant disseminated sulphide mineralization #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 ### EXC26-001 [Link to this fact](https://atlas-extractions.minestarters.com/news/first-ever-drill-hole-at-excalibur-intersects-long-intervals-of-alteration-and-s--d0f93343-3515-4e34-9527-9df1b68f96f9#fact-drill-facts-1) Excalibur · copper #### Identity - Hole ID: EXC26-001 - Project: Excalibur - Commodity: copper - Region: canada\_bc - Reported Region: canada\_bc - Ticker: PRR #### Geometry - Intercept: 515 m - From: 0 m - To: 515 m - Hole Depth: 515 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: EXC26-001:0-515 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: ALS Minerals - QP Signed: Yes - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Visual evidence of chalcopyrite suggests copper mineralization in a porphyry context. - Positive factor: Visual presence of chalcopyrite - Negative factor: No assay grades provided Evidence · text > associated with minor amounts of chalcopyrite and molybdenite #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 ### EXC26-002 [Link to this fact](https://atlas-extractions.minestarters.com/news/first-ever-drill-hole-at-excalibur-intersects-long-intervals-of-alteration-and-s--d0f93343-3515-4e34-9527-9df1b68f96f9#fact-drill-facts-2) Excalibur · gold #### Identity - Hole ID: EXC26-002 - Project: Excalibur - Commodity: gold - Region: canada\_bc - Reported Region: canada\_bc - Ticker: PRR #### Geometry - Intercept: 464 m - From: 0 m - To: 464 m - Hole Depth: 464 m - Intercept Depth: 0 m #### Classification - Deposit Type: porphyry - Program: exploration - Sample Type: drill - Group ID: EXC26-002:0-464 - Mining Method: unknown #### Location - Loc. Confidence: medium #### QA/QC - Laboratory: ALS Minerals - QP Signed: Yes - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-11T00:00:00.000Z Reasoning: Hole intersected alteration and trace sulphides, but results are less continuous than EXC26-001. - Positive factor: Potassic alteration observed - Negative factor: Mineralization described as patchy and trace Evidence · text > intersected localized, structurally controlled silicification in the upper 131 meters of the hole, followed by patchy potassic alteration over the lower 333 meters #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document. Why it applies: qaqc\_disclosed is not 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 ## 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.