Minera Yanacocha, Peru

Some 45km from Cajamarca in northern Peru, at an altitude of 4,700m, Minera Yanacocha operates a complex of four gold mines and a processing facility. This was the first significant foreign investment in Peruvian mining for 20 years. The mine is located in the Peruvian Andes at an elevation of 14,000ft above sea level.