Plomosas Project

GR Silver Mining has assembled an extraordinary portfolio of highly prospective mining concessions in the historic Rosario Mining District, Sinaloa, Mexico. At the core of this portfolio is the 432 km2 Plomosas Silver Project, which includes the Plomosas Mine Area, the San Marcial Area, and the La Trinidad Area. The Company also controls 300 km2 of key non-core concessions adjacent to the Plomosas Project that are well situated providing incremental growth potential and possible future business opportunities. Combined, GR Silver Mining’s concessions control most of the silver-gold-lead-zinc mineralized zones identified in the eastern Rosario Mining District

In May 2023, GR Silver Mining published a NI 43-101 technical report and mineral resource update for the Plomosas Project. The tables below summarize the mineral resource estimate for the Plomosas Project.

Click here to download the NI 43-101 2023 technical report and mineral resource update for the Plomosas project.

Plomosas Mine Area

High-grade silver-gold, lead and zinc development-stage property with 7.4 km of underground development, existing exploitation permits, and multiple targets drilled with exploration upside; contains numerous low sulfidation epithermal vein discoveries.

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San Marcial Area

A near-surface, precious metals dominant, resource expansion-stage property in a multimillion-ounce mining district.

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La Trinidad Area

The La Trinidad mine was reported to have been one of the highest-grade open-pit, heap leach gold mines in Mexico until its closure in 2019. GR Silver Mining completed the acquisition of this property, along with a highly prospective portfolio of 12 mining concessions, in March 2021.

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Rosario Gold-Silver Project

As part of the March 2020 acquisition of the Plomosas Property, GR Silver Mining also acquired a package of three concessions strategically located adjacent to Rosario town. These concessions may host extensions to the historical multimillion-ounce Rosario gold-silver mine, which was reported to have closed in 1941 after an operating life spanning over 250 years.

Learn More About the Rosario Gold-Silver Project

Other Non-core Properties

Explore the additional projects GR Silver Mining is actively involved in.

Discover Our Other Projects