# Tocvan Announces Positive Surface Results From North Block And Drill Program Update At Gran Pilar *2025-12-04T02:05:00-05:00* Tocvan Announces Positive Surface Results From North Block And Drill Program Update At Gran Pilar _**Highlights:**_ - _**Initial surface results from North Block across historic mine workings yield high silver values**_ - _**Over 1,300 meters drilled to date across the North Block, results pending**_ - _**Surface data strengthens target areas for drill testing higher grade gold potential at depth.**_ - _**Mineralized shoots and feeder zones could coincide with strong alteration signatures where Ag-Pb-Zn-Sb-As and Au-As-Sb-Bi are present.**_ - _**Road building and preparation work continues in South Block for trenching and extraction.**_ - [_**Video Explanation**_](https://youtu.be/U7KI1zZCfJk) **HERMOSILLO, MX / [ACCESS Newswire](https://www.accessnewswire.com/)/ December 4, 2025 / **Tocvan Ventures Corp. (the "Company" or "Tocvan") (CSE:TOC)(OTCQB:TCVNF)(WKN:TV3/ A2PE64) a leading exploration company focused on advancing its flagship Gran Pilar Gold-Silver Project in Sonora, Mexico, is pleased to announce encouraging results from initial surface sampling on the North Block of the Gran Pilar property. The sampling program has revealed elevated silver values, strong pathfinder elements and alteration indicators, highlighting significant potential for expanded mineralization. The surface sampling campaign targeted underexplored areas within the North Block, including several new zones and historic mine workings. Key highlights include: Elevated silver assays reaching up to 134 g/t (4.3 oz/t Ag), indicating high-grade potential in surface exposures. Widespread elevated pathfinder elements and alteration signatures, such as anomalous arsenic, antimony, lead and zinc, which are commonly associated with epithermal gold-silver systems. Identification of mineralization indicators across multiple new areas, including old mine workings that suggest historical activity and untapped exploration opportunities. These results build on Tocvan's ongoing efforts to delineate and expand the known mineralized zones at Gran Pilar. The North Block, part of the larger Gran Pilar expansion area, represents a strategic addition to the project and underscores the district-scale potential of the property. **"We are thrilled with these initial surface results from the North Block, which confirm our belief in the expansive mineralization system at Pilar," said Brodie Sutherland, CEO of Tocvan Ventures. "The high silver values and strong alteration indicators point to exciting new targets that could significantly enhance our resource base. Combined with our active drill program, these findings position us well for continued growth and value creation for our shareholders. Furthermore, our pilot preparations are advancing steadily following the full permit approval for the pilot mine facility, allowing us to test processing methods on-site. In parallel, roads for trenching efforts are being built to expose and sample these new zones, providing critical data to guide our expansion strategy."** In addition to the sampling update, Tocvan reports progress on its ongoing drill program at Gran Pilar. To date, approximately 1,300 meters have been drilled across five holes, focusing on resource discovery targets. The program is designed to further define high-priority zones and test extensions of known mineralization. Assay results from these holes are pending and will be released as they become available. Tocvan remains committed to advancing the Gran Pilar Project through systematic exploration, with plans for additional sampling, geophysical surveys, and ongoing drilling in the coming months. The Company continues to prioritize environmental stewardship and community engagement in all operations. In addition, road work and preparations for trenching and drilling in the South Block continues as the Company prepares for the next phase of Pilot Production setup and testing. [](https://app.accessnewswire.com/imagelibrary/fe8b4453-9650-4e65-b530-51dd6c891f2e/20251204figure1.jpg) _Figure 1. Map of North Alteration Zone with Target Rankings defined by creating an Overall Composite Index of Au and Ag pathfinders. Target Rankings are based on: SPI (Silver‑Polymetallic Index): highlights Ag‑Pb‑Zn‑Sb‑As ± Cu/W/Mo halos typical of epithermal or polymetallic systems. GPI (Gold‑Pathfinder Index): emphasizes Au‑As‑Sb‑Pb‑Bi ± S associations common in Au systems. Overall composite index (shown on map): the mean of SPI and GPI percentiles, capturing samples that are strong in either system or both._ [](https://app.accessnewswire.com/imagelibrary/13afa445-4e39-41f2-8739-c25576035b33/20251204table1.jpg) _Table 1. Hig