Minera Escondida

Minera Escondida is a mining company that operates the Escondida copper mine which is composed of two open pits in the Atacama Desert, 170 km southeast of Antofagasta in northern Chile. It is currently the highest producing copper mine in the world. Its 2007 production of 1.483 million tons of the metal was worth US$10.12 billion, mainly as metal in concentrate, but some as cathode, and was 9.5% o... (Wikipedia)