The Mine consists of seven separate underground mines:
1. Mercedes Mine area composed of Corona de Oro (no current reserves), Casa Blanca, Brecha Hill, Brecha Hill Norte, Aida, and Aida Norte;
2. Barrancas-Lagunas mine area composed of the Lagunas, Barrancas Centro, Barrancas Norte, Marianas, and Gap zone;
3. Lupita & Lupita Extension mine area;
4. Diluvio & Diluvio West mine areas;
5. Klondike mine area composed of the Rey de Oro and Rey de Oro Superior (Klondike deposit has no current reserves);
6. San Martin mine area.
While each of these deposits has ore remaining, Mercedes and Barrancas-Lagunas are nearing depletion with mostly remnant mining taking place. The bulk of the tonnage for the LOM is expected to be mined from Lupita, Diluvio, and Rey de Oro.
Each of the deposits are accessed through surface portals with some underground connections between deposits where possible.
Underground ramps connecting levels and nearby deposits are used as haulage routes for the 16 t haul trucks utilized at the Mine. These haul trucks are responsible for hauling from underground at each respective deposit and dumping at the ore stockpile located at the Mercedes section of the mine site.
The Mine currently plans the majority of mining to be completed using the mechanized cut & fill mining method. In Diluvio and Diluvio West the Mine utilizes a longitudinal longhole open stoping mining method where the ground condi ........
