Open Pit Mine: An excavation or cut made at the surface of the ground for the purpose of extracting ore and which is open to the surface for the duration of the mine’s life.
Bingham Canyon, US. (Copper, Gold, Silver, Molybdenum)
Fimiston Open Pit, Australia. (Copper)
Chuquicamata, Chile. (Copper)
Udachny, Russia. (Diamond)