The Carlota mine is located in the western part of the Miami-Globe mining region, 10 km to the west of Miami, on the border between Gila and Pinal counties in eastern Arizona, USA. It extracted ore from a deposit characteristic of a complex hydrothermal system with some features of a porphyry-copper type.

Mining of the copper ore from the Carlota site was by conventional open pit methods. This begins by blasting rock using explosives in an engineered and controlled setting. The resulting material that is of economic value (ore) is loaded into large haulage trucks and subsequently transported to the heap leach pad for conveyor stacking in fifteen foot (5 meter) lifts.

Currently, the Carlota Mine runs the process of post-mine area recultivation along with underground leaching of the remaining heaps. This model of operation assumes stable production of copper since 2020, to the moment of final closure of the Carlota Mine.

The open-pit mines Carlota in the USA and Franke in Chile process their ore using SX/EW technology (involving leaching of the ore on heaps, extraction of the resulting solvent and its preparation for electrowinning to produce metallic copper). The end product is electrolytic copper in the form of cathodes.