The property is located 35 km NW of Cajamarca City, district of Pulan, province of Santa Cruz in Perú. Minera La Zanja controls 32,070 ha of mineralized ground in La Zanja project.
GOLD AND SILVER mine
La Zanja is located within a large area of hydrothermal alteration, mainly related to epithermal gold deposits in high sulfidation environments, in addition to some vein systems of intermediate to low sulfidation. Two ore deposits have been recognized : San Pedro Sur and Cerro Pampa Verde, containing also silver, very favorable for mining due their proximity to the surface and the volume of disseminated mineral. It is an open pit mining operation.
La Zanja mine started to leach ore in pads on August 6, 2010. The first gold bar was obtained on September 7, 2010.
Mining operations are conducted through the open-pit method and carbon-in-column circuits are utilized to recover gold from heap leach operations.
Mineral extracted is treated by leaching and the enrichment solution by Adsoption /Desorption / Regeneration with activated charcoal for obtaining silver and gold dore bars by a final process of smelting
The gold-laden carbon is then transported to Yanacocha to continue processing into doré bars.