High Quality Content by WIKIPEDIA articles! The Radomiro Tomi mine is located at 1,670 km (1,040 mi) north of Santiago, Chile, at 3,000 meters (9,800 ft) above sea level in the Andes Range. Radomiro Tomi mine is near to Chuquicamata mine and Calama city in the region of Antofagasta. It is an open pit mine that extracts oxide minerals. Although this deposit was discovered in the 1950s, its operations started only in 1995, after Codelco updated the feasibility studies for its exploitation and acquired the technology necessary to exploit it profitably. Today, Chilean Copper Corporation (Codelco) controls the mine. Until 1999, Radomiro Tomi was referred to as "Codelco Chile Division Radomiro Tomi ", since then, (Codelco) has renamed it "Codelco Norte".