El Fierro Project


El Fierro Project is located in the San Juan province in Argentina; 120 km North of Sable’s Don Julio Project and 250 km NW of San Juan Capital city.

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General view of El Fierro Project showing the three main mineralized zones

Deposit Geology

Three main zones have been identified at El Fierro: Fierro Bajo, Fierro Alto and La Verde forming a footprint area of 8km by 4km. Mineralization at Fierro Bajo occurs within four main NW structures extending over an area of 2km by 500m; all the structures remain open in both directions. Mineralized structures exhibit Illite, sericite, silica and sulfide including pyrite, galena, chalcopyrite, and Sb sulphosalts. Rock samples reach values up to 17,531 g/t AgEq (12,181 g/t Ag, 5.67% Pb, 1.6% Cu, and 0.2% Zn). At Fierro Alto mineralized structures are hosted within Carboniferous metasediments and Miocene volcanics. Two main structures (Veins F and G) have been followed along strike for at least 1.2 km combined. Mineralized fault zones contain sericite, quartz, galena, sphalerite, chalcopyrite and arsenopyrite. Mineralization is characterized by high-grade Ag, Pb, Zn and includes significant values of gold, being this the main difference with Fierro Bajo. Three additional structures (Veins J, K, and L) were observed at just one location and will need trenching and additional follow-up along strike. Values at Fierro Alto are as high as 1,946.5 g/t AgEq (1,070 g/t Ag, 20% Pb, 0.38 g/t Au, 1.03% Zn, and 1.33% Cu). La Verde was the most recently found zone; three structures have been identified. Mineralization is totally hosted by Miocene volcanic rocks and shows clear epithermal characteristics. Veins at La Verde show silica, carbonate, barite, pyrite, chalcopyrite, galena, and arsenopyrite. Preliminary rock sampling returned values up to 2,582 g/t AgEq (784 g/t Ag, 16.7 g/t Au, 3.42% Pb, 0.3% Zn, and 0.3% Cu). La Verde shows the highest gold values within the entire project and it’s the least explored of the three main zones. The 3 areas are separated by vast extensions of unexplored ground with potential for additional epithermal and porphyry mineralization.

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Fierro Bajo structures and surface sampling showing silver equivalent values

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Fierro Alto structures and surface sampling showing silver equivalent values

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La Verde structures and surface sampling showing silver equivalent values

Exploration to Date

The properties were optioned in early 2020, and immediately after mapping and surface sampling started. Today, the three main zones have been mapped with extensive rock sampling. Additional prospection for strike extensions and new veins is advancing. 450 soil samples were collected targeting the NW strike extension of the Fierro Bajo veins and results are pending. A 264 km Ground Mag survey covering the three zones was completed and data is currently being processed and interpreted. 77km of IP surveys are currently being acquired.


The El Fierro Project has never been drilled and Sable will start a 3000m campaign in February 2021 to test the main mineralized structures.

Status: Phase 2 exploration, Phase 1 Drilling