he Grasberg Mine is located in the province of Papua, in Indonesia, the
highest mountain in Papua, and it has 19,500 employees. The 2006
production was 610,800 tonnes of copper; 58,474,392 grams of gold; and
174,458,971 grams of silver.
Grasberg porphyry Cu-Au deposit, Papua, Indonesia
The Bingham Canyon Mine is an open-pit mining operation extracting a
large porphyry copper deposit southwest of Utah, USA.
The mine has been in production since 1906, and has resulted in the creation
of a pit over 0.6 miles (0.97 km) deep, 2.5 miles (4 km) wide, and covering
1,900 acres (770 ha).