# Silver Mining News in Colombia

Canonical page: https://atlas-staging.minestarters.com/news?commodities=silver&regions=colombia

Atlas summarizes and classifies mining-industry stories from third-party publishers. Follow each source link for the original reporting.

Results: 27
Returned: 10
Coverage: drill results, resource updates, and metallurgy; primary commodity matching; all time unless dates are supplied.
Region: Colombia (colombia)
Commodity: Silver (silver)
Applied filters: {"regions":["colombia"],"commodities":["silver"],"commodity_scope":"primary","document_types":["drill_results","resource_update","metallurgy"],"document_type_match":"any"}
Sort: published_at desc
Offset: 0; page size: 10


[Next page](https://atlas-staging.minestarters.com/news.md?commodities=silver&regions=colombia&page=2&page_size=10)

## Outcrop Silver Extends Santa Ana Vein System Northward and Identifies Parallel Cascada Vein

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/outcrop-silver-extends-santa-ana-vein-system-northward-and-identifies-parallel-c--9023b346-57d8-43a4-9389-b5750790c871) · [Markdown](https://atlas-staging.minestarters.com/news/outcrop-silver-extends-santa-ana-vein-system-northward-and-identifies-parallel-c--9023b346-57d8-43a4-9389-b5750790c871.md)
- Original announcement: 2026-10-21T00:00:00.000Z
- Atlas analysis published: 2026-10-21T12:55:08.205Z
- Atlas analysis updated: 2026-10-21T12:55:08.205Z
- Company: Outcrop Silver & Gold Corporation (OCG)
- Original source: [prospectors_exchange](https://outcropsilver.com/news/outcrop-silver-extends-santa-ana-vein-system-northward-and-identifies-parallel-cascada-vein/)
- Atlas sentiment: 0.514
- Atlas tags: Step-Out Extension, Bonanza Intercept, QA/QC Disclosed

Outcrop Silver has confirmed the northward extension of the Santa Ana vein system, establishing a structural connection with the Alaska vein. Additionally, drilling identified the new Cascada vein, which returned high-grade silver-equivalent intercepts, including 4,725 g/t AgEq.

## OUTCROP SILVER Launches Project Argentum: Technical Work Plan Approved for Santa Ana Pilot Operation, Targeted for Production in 2027

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/outcrop-silver-launches-project-argentum-technical-work-plan-approved-for-santa--ed6d0bdb-ff8b-4361-9a2d-beb4405044ac) · [Markdown](https://atlas-staging.minestarters.com/news/outcrop-silver-launches-project-argentum-technical-work-plan-approved-for-santa--ed6d0bdb-ff8b-4361-9a2d-beb4405044ac.md)
- Original announcement: 2026-10-15T00:00:00.000Z
- Atlas analysis published: 2026-10-15T13:03:45.669Z
- Atlas analysis updated: 2026-10-15T13:03:45.669Z
- Company: Outcrop Silver & Gold Corporation (OCG)
- Original source: [prospectors_exchange](https://outcropsilver.com/news/outcrop-silver-launches-project-argentum-technical-work-plan-approved-for-santa-ana-pilot-operation-targeted-for-production-in/)
- Atlas sentiment: 0.347
- Atlas tags: NI 43-101 Compliant, Inferred Resource

Outcrop Silver has launched Project Argentum at its Santa Ana project in Colombia, following approval of a Technical Work Plan by the National Mining Agency. The project includes a 40 tpd pilot underground mining operation and an innovation center, with production targeted for 2027.

## Collective Mining Discovers Shallow High-Grade Silver-Tungsten Mineralization in Northern Apollo, Drilling 5.50m at 1,283 g/t Silver, 0.83% WO₃, 0.57% Copper and 0.17 g/t Gold from 89.15m

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/collective-mining-discovers-shallow-high-grade-silver-tungsten-mineralization-in--62895d38-bdeb-44cc-9692-53b163fdda58) · [Markdown](https://atlas-staging.minestarters.com/news/collective-mining-discovers-shallow-high-grade-silver-tungsten-mineralization-in--62895d38-bdeb-44cc-9692-53b163fdda58.md)
- Original announcement: 2026-10-13T11:15:53.805Z
- Atlas analysis published: 2026-10-13T11:25:45.568Z
- Atlas analysis updated: 2026-10-13T11:25:45.568Z
- Company: Collective Mining Ltd. (CNL)
- Original source: [cnw](https://www.newswire.ca/news-releases/collective-mining-discovers-shallow-high-grade-silver-tungsten-mineralization-in-northern-apollo-drilling-5-50m-at-1-283-g-t-silver-0-83-wo3-0-57-copper-and-0-17-g-t-gold-from-89-15m-815802911.html)
- Atlas sentiment: 0.842
- Atlas tags: None

Collective Mining announced high-grade silver-tungsten mineralization at its Apollo project in Colombia, including a shallow intercept of 5.50m at 1,283 g/t silver, 0.83% WO₃, 0.57% copper, and 0.17 g/t gold. These new results expand the Shallow Halo Zone, converting previously modelled waste into potential resources and demonstrating significant resource growth potential. The company is fully funded for its 2026 drilling program with 99 holes pending assays.

## Royal Road Minerals CEO: Margaritas silver veins hint at deeper porphyry system

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/royal-road-minerals-ceo-margaritas-silver-veins-hint-at-deeper-porphyry-system--c1465fb9-5ce6-4a18-aa05-d8cd429c7c83) · [Markdown](https://atlas-staging.minestarters.com/news/royal-road-minerals-ceo-margaritas-silver-veins-hint-at-deeper-porphyry-system--c1465fb9-5ce6-4a18-aa05-d8cd429c7c83.md)
- Original announcement: 2026-10-07T18:30:21.553Z
- Atlas analysis published: 2026-10-07T19:02:58.970Z
- Atlas analysis updated: 2026-10-07T19:02:58.970Z
- Company: Royal Road Minerals Ltd (RYR)
- Original source: [proactiveinvestors](https://www.proactiveinvestors.com/companies/news/1099755/royal-road-minerals-ceo-margaritas-silver-veins-hint-at-deeper-porphyry-system-1099755.html)
- Atlas sentiment: 0.409
- Atlas tags: Nearology Play

Royal Road Minerals CEO Dr. Tim Coughlin discussed the discovery of high-grade silver-antimony veins at the Margaritas target in Colombia. These veins suggest the presence of a larger, deeper porphyry copper-gold system and have extended the project's area of interest.

## Royal Road Minerals expands Colombian silver-gold-antimony vein system

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/royal-road-minerals-expands-colombian-silver-gold-antimony-vein-system--3740b66d-482d-45c1-939f-77a15f25739a) · [Markdown](https://atlas-staging.minestarters.com/news/royal-road-minerals-expands-colombian-silver-gold-antimony-vein-system--3740b66d-482d-45c1-939f-77a15f25739a.md)
- Original announcement: 2026-10-07T14:45:47.854Z
- Atlas analysis published: 2026-10-07T14:47:42.417Z
- Atlas analysis updated: 2026-10-07T14:47:42.417Z
- Company: Royal Road Minerals Ltd (RYR)
- Original source: [proactiveinvestors](https://www.proactiveinvestors.com/companies/news/1099744/royal-road-minerals-expands-colombian-silver-gold-antimony-vein-system-1099744.html)
- Atlas sentiment: 0.358
- Atlas tags: Step-Out Extension, Apparent Width Only

Royal Road Minerals has expanded the known footprint of its silver-gold-antimony vein system at the Margaritas target in Colombia through new geological mapping. The expansion includes newly identified veins and mineralized breccias, with rock-chip sampling returning high-grade silver and gold values.

## Royal Road Expands High-Grade Silver-Gold-Antimony Vein System and Advances Porphyry Vectoring at Margaritas, Colombia

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/royal-road-expands-high-grade-silver-gold-antimony-vein-system-and-advances-porp--4f81489f-e455-4610-982b-051e6ee1e29a) · [Markdown](https://atlas-staging.minestarters.com/news/royal-road-expands-high-grade-silver-gold-antimony-vein-system-and-advances-porp--4f81489f-e455-4610-982b-051e6ee1e29a.md)
- Original announcement: 2026-10-07T12:00:00.000Z
- Atlas analysis published: 2026-10-07T12:43:21.270Z
- Atlas analysis updated: 2026-10-07T12:43:21.270Z
- Company: Royal Road Minerals Limited (RYR.V)
- Original source: [orestocks](https://orestocks.com/company/RYR.V/press-releases/6355080612167093)
- Atlas sentiment: 0.335
- Atlas tags: Step-Out Extension, Apparent Width Only, QA/QC Disclosed

Royal Road has expanded the known footprint of the high-grade silver-gold-antimony vein system at the Margaritas target in Colombia through geological mapping and surface sampling. The company also identified porphyry-style alteration, providing a new vector towards a potential larger hydrothermal system.

## Royal Road Minerals Expands High-Grade Silver-Gold-Antimony Vein System and Advances Porphyry Vectoring at Margaritas, Colombia

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/royal-road-minerals-expands-high-grade-silver-gold-antimony-vein-system-and-adva--91f7cba3-fdc5-4df7-98a4-294e77881e97) · [Markdown](https://atlas-staging.minestarters.com/news/royal-road-minerals-expands-high-grade-silver-gold-antimony-vein-system-and-adva--91f7cba3-fdc5-4df7-98a4-294e77881e97.md)
- Original announcement: 2026-10-07T07:39:10.000Z
- Atlas analysis published: 2026-10-07T12:47:33.394Z
- Atlas analysis updated: 2026-10-07T12:47:33.394Z
- Company: Royal Road Minerals Limited (RYR)
- Original source: [jmn](https://www.juniorminingnetwork.com/junior-miner-news/press-releases/1540-tsx-venture/ryr/212500-royal-road-expands-high-grade-silver-gold-antimony-vein-system-and-advances-porphyry-vectoring-at-margaritas-colombia.html)
- Atlas sentiment: 0.358
- Atlas tags: Step-Out Extension, No QA/QC Disclosure

Royal Road Minerals has expanded the known footprint of the high-grade silver-gold-antimony vein system at the Margaritas target in Colombia through geological mapping. Surface sampling returned high-grade intercepts, including up to 475 g/t silver, and new potassic alteration provides a vector towards a potential porphyry source.

## Outcrop Silver's 23.5% Increase of Indicated Mineral Resource at Santa Ana & PEA Work Begins

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/outcrop-silver-s-23-5-increase-of-indicated-mineral-resource-at-santa-ana-pea-wo--1e39013c-fddb-4d6b-803b-5c42fe34c83a) · [Markdown](https://atlas-staging.minestarters.com/news/outcrop-silver-s-23-5-increase-of-indicated-mineral-resource-at-santa-ana-pea-wo--1e39013c-fddb-4d6b-803b-5c42fe34c83a.md)
- Original announcement: 2026-09-19T00:00:00.000Z
- Atlas analysis published: 2026-09-19T12:03:48.599Z
- Atlas analysis updated: 2026-09-19T12:03:48.599Z
- Company: Outcrop Silver & Gold Corporation (OCG)
- Original source: [cruxinvestor](https://www.cruxinvestor.com/posts/outcrop-silver-23-5-increase-of-indicated-mineral-resource-at-santa-ana-as-pea-work-begins)
- Atlas sentiment: 0.526
- Atlas tags: Category Upgrade, QP/CP Signed, NI 43-101 Compliant

Outcrop Silver has updated its Santa Ana mineral resource estimate to 57.8 million ounces silver-equivalent, including 29.9 million ounces Indicated at 518.7 g/t AgEq. The update follows a stricter classification methodology and precedes the commencement of a Preliminary Economic Assessment (PEA) in late September 2026.

## Outcrop doubles inferred silver at Santa Ana in Colombia

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/outcrop-doubles-inferred-silver-at-santa-ana-in-colombia--aad2f8f7-680b-4349-9ab2-27527cc4542b) · [Markdown](https://atlas-staging.minestarters.com/news/outcrop-doubles-inferred-silver-at-santa-ana-in-colombia--aad2f8f7-680b-4349-9ab2-27527cc4542b.md)
- Original announcement: 2026-09-16T15:00:50.000Z
- Atlas analysis published: 2026-09-16T16:50:59.732Z
- Atlas analysis updated: 2026-09-16T16:50:59.732Z
- Company: Outcrop Silver & Gold (OCG)
- Original source: [northernminer](https://www.northernminer.com/news/outcrop-doubles-inferred-silver-at-santa-ana-in-colombia/1003894891/)
- Atlas sentiment: 0.691
- Atlas tags: Tonnage Growth, Contained Metal Growth, Maiden Resource

Outcrop Silver & Gold has updated its Santa Ana resource in Colombia, more than doubling its inferred silver tonnes and increasing total contained silver to 41.8 million oz. The update was driven by 130,006 metres of new drilling and the inclusion of the Los Mangos system, though stricter classification criteria moderated the growth in the indicated category.

## OUTCROP SILVER ANNOUNCES UPDATED MINERAL RESOURCE ESTIMATE FOR THE SANTA ANA PRIMARY SILVER PROJECT

- Atlas analysis: [Read analysis](https://atlas-staging.minestarters.com/news/outcrop-silver-announces-updated-mineral-resource-estimate-for-the-santa-ana-pri--3ec62b98-e0cc-4e10-b147-8d5ff22eb324) · [Markdown](https://atlas-staging.minestarters.com/news/outcrop-silver-announces-updated-mineral-resource-estimate-for-the-santa-ana-pri--3ec62b98-e0cc-4e10-b147-8d5ff22eb324.md)
- Original announcement: 2026-09-14T10:45:00.000Z
- Atlas analysis published: 2026-09-16T14:25:30.949Z
- Atlas analysis updated: 2026-09-16T14:25:30.949Z
- Company: Outcrop Silver & Gold Corporation (OCG)
- Original source: [tmx](https://money.tmx.com/en/quote/OCG/news/7854077381254175/outcrop-silver-announces-updated-mineral-resource-estimate-for-the-santa-ana-pri)
- Atlas sentiment: 0.42
- Atlas tags: NI 43-101 Compliant, QP/CP Signed, Contained Metal Growth, Category Upgrade, Cut-off Disclosed, Resource Update, Indicated Resource, Inferred Resource

Outcrop Silver & Gold Corporation announced an updated Mineral Resource Estimate for its Santa Ana Primary Silver Project in Colombia. The Updated MRE reports 29.9 million ounces (Moz) silver-equivalent (AgEq) in the Indicated category at 518.7 g/t AgEq, and 27.9 Moz AgEq in the Inferred category at 368.5 g/t AgEq. This represents a 23.5% increase in Indicated AgEq ounces and a 106.3% increase in Inferred AgEq ounces compared to the maiden MRE, with the estimate applying a more rigorous classification standard.

# Atlas tag definitions

- **Bonanza Intercept:** Exceptionally high-grade zone, well above the deposit-type norm.
- **True Width Disclosed:** Actual thickness perpendicular to structure is stated, not just downhole length.
- **Step-Out Extension:** Mineralization extended beyond the previously known limit.
- **QA/QC Disclosed:** Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
- **Compositing Transparent:** Cut-off grade and internal dilution rules are clearly stated for reported intervals.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Apparent Width Only:** Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
- **Stale Data Re-release:** Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
- **No QA/QC Disclosure:** Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
- **Metal Equivalent Opaque:** Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Deleterious Elements Present:** Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
- **Infill Drilling:** Confirmatory drilling to raise resource confidence, not new discovery.
- **Nearology Play:** Value premise rests on proximity to a known deposit rather than own results.
- **Measured Resource:** Highest confidence category — tonnage, grade, shape well-established from closely-spaced drilling. Basis for Proven Reserves.
- **Indicated Resource:** Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
- **Proven Reserve:** Measured Resource with demonstrated economic viability after applying modifying factors.
- **Probable Reserve:** Indicated Resource with demonstrated economic viability after applying modifying factors.
- **Category Upgrade:** Resource confidence improved — Inferred upgraded to Indicated, or Indicated to Measured. De-risking signal.
- **Tonnage Growth:** Significant tonnage increase (≥15%) vs prior estimate with grade maintained or improved.
- **Grade Improvement:** Average resource grade improved vs prior estimate — better deposit economics.
- **Contained Metal Growth:** True scale improvement — contained metal ounces/tonnes increased vs prior, accounting for both tonnage and grade changes.
- **QP/CP Signed:** Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
- **Cut-off Disclosed:** Cut-off grade used for resource reporting is clearly stated, enabling like-for-like comparison.
- **JORC Compliant:** Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
- **NI 43-101 Compliant:** Resource estimate prepared in compliance with NI 43-101 (Canada) — high reporting standard.
- **Inferred Resource:** Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
- **All Inferred:** 100% of resource is Inferred category — very early stage, no engineering confidence.
- **Grade Decline:** Average grade dropped >5% vs prior estimate — deposit economics worsening. May indicate high-grading in early drilling.
- **Tonnage Decline:** Resource tonnage decreased vs prior estimate — pit optimization removed marginal material or geological model revised down.
- **Category Downgrade:** Resource confidence decreased — Measured downgraded to Indicated, or Indicated to Inferred. Unusual and concerning.
- **Contained Metal Decline:** Contained metal decreased vs prior despite tonnage growth — grade dilution exceeds volume gain.
- **Dilutive Growth:** Tonnage increased but contained metal flat or down — likely from lower cut-off grade, not geological expansion.
- **Cut-off Lowered:** Cut-off grade significantly reduced vs prior estimate — tonnage growth may be artificial inflation.
- **Cut-off Undisclosed:** Cut-off grade not disclosed — cannot assess comparability to prior estimates or peers.
- **Historical Estimate Only:** Estimate pre-dates or does not comply with current JORC/NI 43-101 standards — requires verification drilling.
- **Stale Estimate:** Effective date is >2 years old — data currency concern, may not reflect current geological understanding.
- **No Contained Metal:** Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
- **No QP/CP Disclosure:** No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience.
- **Maiden Resource:** First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.
- **Resource Update:** Revised estimate for an existing resource — compare to prior to assess progress.
- **PEA-Supporting:** Resource estimate prepared to support a Preliminary Economic Assessment — early-stage study.
- **PFS-Supporting:** Resource estimate prepared to support a Pre-Feasibility Study — requires adequate M&I component.
- **DFS-Supporting:** Resource estimate prepared to support a Definitive Feasibility Study — requires high M&I confidence.
- **High Recovery:** Recovery at or above the exceptional band for the commodity and processing route.
- **Pilot Scale Complete:** Pilot or demonstration plant testing completed under continuous operation.
- **Free Milling:** Simple, clean ore amenable to standard processing without oxidation.
- **Multi-Domain Tested:** Variability across ore domains (oxide, transition, fresh) has been addressed.
- **Recovery Improving:** Recovery improved versus a like-for-like prior test program on the same domain and route.
- **Low Recovery:** Recovery below the weak band for the commodity and processing route.
- **Bench Scale Only:** Only preliminary bench tests completed — no locked-cycle or pilot work.
- **Refractory Ore:** Complex mineralogy requiring oxidation or other special processing before recovery.
- **Single Domain Only:** Testing limited to one composite or domain — representativeness not established.
- **Recovery Stagnant:** No improvement across multiple test programs on comparable material.
- **Theoretical Recovery Only:** Only theoretical or liberation-derived recovery reported, with no actual test result.
- **Heap Leach Route:** Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
- **Mill Route:** Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
- **Gravity Route:** Gravity separation forms a material part of the flowsheet.
- **POX/BIOX Route:** Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX.
- **Byproduct Commodity:** The tested commodity is a byproduct rather than the primary economic driver.