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Freeport explored for other deposits in the area. In 1988, Freeport identified reserves valued at $40 billion at Grasberg (Dutch, "Grass Mountain"), 3 kilometres (2 miles) from the Ertsberg mine. The construction of the winding road to Grasberg, the H.E.A.T. (Heavy Equipment Access Trail), was estimated to cost $12 million to $15 million to build.
Years later this gave rise to the Grasberg copper mine. In 1939, he published an article about his find, but it was neglected due to World War II. Twenty years later, the article led to rediscovery of the Ertsberg and the development of the Ertsberg-Grasberg mine complex.
Freeport-McMoRan Inc., often called Freeport, is an American mining company based in the Freeport-McMoRan Center, in Phoenix, Arizona.The company is the world's largest producer of molybdenum, a major copper producer and operates the world's largest gold mine, the Grasberg mine in Papua, Indonesia.
Grasberg is a municipality in the district of Osterholz, in Lower Saxony, Germany. It is situated approximately 13 km southeast of Osterholz-Scharmbeck , and 20 km northeast of Bremen . History
Inside of Grasberg mine visited by the President Joko Widodo Central Papua is rich in mining resources, with notable sites such as Ertsberg, Grasberg mine , and the Wabu Block. The Grasberg mine stands as one of the world's largest gold mines , situated in the mountainous terrain of Mimika Regency.
The lead sentence says that Grasberg is the largest gold mine and 3rd largest copper mine in the world, but this may mean a number of different things. Possibilities: metal production rate, cumulative historic metal production, surface area, or excavated volume.
Grasberg and Ertsberg Mines are part of a single mining complex in the glacier-capped mountains of Irian Jaya, Indonesia. Together, they comprise the single largest copper-gold mine in the world, with reserves of 2.8 billion tonnes grading 1.1% Cu and 1.1 g/t Au. [29]
The Grasberg mine has been cited as one of the largest single taxpayers in Indonesia, [3] [17] contributing 0.6 percent to Indonesia's GDP (96 percent of the GDP of Mimika Regency where the mine is located) and generating 17.3 billion USD in revenue for the Indonesian government between 1992 and 2017 through taxes, export duties, royalties, and ...