Summary
Pinnacle Silver & Gold Corp. has confirmed a significant expansion of the mineral potential at its El Potrero project in Durango, Mexico, following the discovery of a new polymetallic zone. CEO Robert Archer announced that recent field work on the southern claim block identified silver-lead-zinc mineralization, a major shift for a project previously focused solely on gold and silver. This discovery, driven by property-wide LiDAR technology, comes as the company prepares to launch underground delineation drilling in the northern section of the property this month.
Question Answer Who took the action?Pinnacle Silver & Gold Corp. (TSXV: PINN) What happened?Discovery of a new silver-lead-zinc polymetallic zone When did it happen?March 2026 How much changed?Exploration footprint expanded to the southern MF2 claim block Why does it matter?Diversifies the project beyond gold-silver and increases resource potential Who is affected?Investors, mining contractors, and the local Ejido El Carmen community What was the earlier level or status?Focused on the northern 10% of the property for gold-silver only What happens next?Underground drilling starts late March; surface drilling permit pendingWhat Happened
Pinnacle Silver & Gold recently completed a comprehensive LiDAR survey across its 1,074-hectare El Potrero land package. The survey identified over 100 historic workings, including six shafts and 64 adits, many of which were previously undocumented. Follow-up prospecting on the southern Maria Fernanda 2 (MF2) claim block led to the discovery of silver-lead-zinc sulphides in silicified breccia veins.
While the company has spent the last year focused on the northern 10% of the property—where historic gold-silver mines and a 100-tonne-per-day plant are located—this new discovery suggests the mineral system is much larger than initially thought. The southern zone shows geological similarities to the nearby Topia district, which is known for high-grade polymetallic production.
Key Numbers and Facts
The following data points summarize the recent exploration results and the current operational status at El Potrero.
Key Fact Detail Main person or groupRobert Archer, CEO of Pinnacle Silver & Gold Main action or decisionExpansion of exploration into southern polymetallic targets Date or periodMarch 2026 update Highest Silver Grade266 g/t Ag (Southern Block) Highest Base Metal Grades4.39% Lead and 2.89% Zinc Northern Gold Recoveries95.09% (Preliminary metallurgical tests) Primary effectIdentification of a new mineralized system type on-site Next confirmed stepUnderground delineation drilling at Dos de Mayo veinWhy This Matters
The discovery of base metals like lead and zinc alongside silver changes the fundamental valuation of the El Potrero project. Previously, investors viewed the site as a high-grade, narrow-vein gold and silver play. By proving the existence of a polymetallic system in the south, Pinnacle has demonstrated that the property hosts multiple styles of mineralization, which is common in the prolific Sierra Madre trend of Mexico.
This development is particularly relevant because it validates the use of modern exploration technology on a property that was held in private hands for nearly 40 years. The LiDAR survey acted as a roadmap, allowing the team to bypass decades of guesswork and move directly to high-priority targets that were hidden by vegetation or terrain.
What Changes Now
Pinnacle is now managing two distinct exploration and development tracks. In the north, the focus remains on fast-tracking the historic gold-silver mines back into production. This involves rehabilitating underground workings and preparing 14 drill stations for imminent delineation drilling.
In the south, the company is initiating a systematic mapping and sampling program to define the scale of the new silver-lead-zinc zone. While the northern gold-silver mineralization is suited for a leaching process, any future production from the southern zone would likely require a flotation circuit. This adds a layer of complexity to long-term planning but offers a significant hedge through metal diversification.
Real-World Impact
For the local community of Ejido El Carmen, the expansion of the project’s potential translates to longer-term economic stability. Pinnacle recently signed a community agreement covering all work required to reach a production decision. As the company moves from mapping to active drilling and mine rehabilitation, local demand for labor and services is expected to rise.
A practical example of this progress is the current mobilization of a Mexican mining contractor to the site. These crews are enlarging access adits and sub-levels to accommodate modern drilling equipment, turning a dormant historic site into an active industrial workplace.
Risks and Concerns
Despite the positive exploration news, Pinnacle faces the standard risks associated with junior mining. The company is currently awaiting an environmental permit from SEMARNAT for surface drilling, a process that typically takes 60 to 90 days. Any delays in permitting could push back the timeline for testing the new southern targets.
Furthermore, while preliminary metallurgical tests for gold were excellent, silver recoveries have been more variable, averaging around 54%. The company is conducting a second round of testing to optimize these results. The new polymetallic discovery will also eventually require its own metallurgical studies, as the processing requirements for lead and zinc differ from the existing gold-silver setup.
Who Benefits and Who Loses
Beneficiaries:
- Shareholders: The discovery of a new mineral zone provides a potential catalyst for a market re-rating as the project's total resource potential grows.
- Local Community: The Ejido El Carmen stands to benefit from long-term employment and infrastructure improvements, such as the proposed 4.5-kilometer powerline extension.
- Technical Partners: Firms like GeoCloud Analytics, which provided the LiDAR interpretation, see their technology validated by the physical discovery of mineralization.
Those Facing Pressure:
- Company Management: The team must now balance the capital requirements of a fast-track production restart with the costs of exploring a large, newly identified mineral system.
- Vendors: While payment terms were recently amended to provide flexibility, the company remains under pressure to meet development milestones to maintain its interest in the project.
What Happens Next
The immediate priority is the start of underground drilling in the northern Dos de Mayo vein trend, scheduled for late March or early April 2026. This program will focus on defining the size and grade of the mineralized zones to support a production decision later this year.
Concurrently, the geological team will continue "boots-on-the-ground" follow-up in the south. Once the surface drilling permit is granted—expected by early summer—Pinnacle plans to test both the northern vein extensions and the new southern polymetallic discovery. Investors should watch for assay results from the ongoing sampling program as the next major news catalyst.
Final Insight
Pinnacle Silver & Gold is proving that "old" mines often have new stories to tell when viewed through a modern lens. By combining historic data with advanced LiDAR mapping, the company has transformed El Potrero from a small-scale gold prospect into a multi-commodity project with district-scale potential. The ability to run production-ready rehabilitation alongside aggressive new exploration suggests a management team focused on creating value through both cash flow and discovery.
Frequently Asked Questions
What is the El Potrero project?
El Potrero is a past-producing gold and silver project located in Durango, Mexico. It is currently being developed by Pinnacle Silver & Gold Corp., which aims to fast-track the site back into production using an existing 100-tonne-per-day processing plant.
What did the new discovery at El Potrero find?
The company discovered a new polymetallic zone in the southern claim block containing silver, lead, and zinc. This is significant because the project was previously known only for its gold and silver mineralization in the northern section.
When will drilling begin at the project?
Underground delineation drilling is scheduled to begin in late March or early April 2026. Surface drilling is expected to follow in approximately 90 days, pending the approval of environmental permits from Mexican authorities.
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Meta Title: Pinnacle Silver & Gold Expands El Potrero with New Discovery
Meta Description: Pinnacle Silver & Gold Corp. discovers a new silver-lead-zinc zone at El Potrero in Mexico. Learn how LiDAR technology is expanding this gold-silver project.
Primary Keyword: Pinnacle Silver & Gold
Secondary Keywords: El Potrero project, Mexico mining news, silver-lead-zinc discovery, Robert Archer, Durango mining, polymetallic mineralization, LiDAR mining survey
URL Slug: pinnacle-silver-gold-el-potrero-expansion-discovery
OG Title: Pinnacle Silver & Gold Unlocks New Potential at El Potrero
OG Description: A new polymetallic discovery in Durango, Mexico, has expanded the footprint of Pinnacle Silver & Gold’s flagship project. Read the latest update.
Focus Entity: Pinnacle Silver & Gold Corp.
Supporting Entities: Robert Archer, El Potrero Project, Durango, Mexico, SEMARNAT
Suggested Image Alt Text: Geological map of El Potrero project showing new southern polymetallic discovery zone and northern gold-silver mines.
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People Also Ask Match: What is the El Potrero project? Who is the CEO of Pinnacle Silver & Gold? Where is the El Potrero mine located?
