Pueblo Viejo mine
The Pueblo Viejo mine is a gold mine located in the north-central region of the Dominican Republic in the Sánchez Ramírez Province. It is the largest gold mine in the Americas and eighth largest in the world. It is also the first exploited mine by the Spaniards in America. The mine produced 581,000 ounces of gold in 2018 and 6.55 million ounces of gold in reserve. The mine, run by the Pueblo Viejo Dominicana Corporation, is 60% owned by Barrick Gold and 40% owned by Newmont Goldcorp. It was formerly operated by the Dominican mining group Rosario Dominicana, S. A., which had exploited Pueblo Viejo from 1975 to 1999 when it went bankrupt.
Gold is recovered from the ore using a pressure oxidation process, performed in four autoclaves which operate at 3.45 MPa and 230 °C.
