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In Arizona, copper mining has been a major industry since the 19th century. In 2007, Arizona was the leading copper-producing state in the country, producing 750 thousand metric tons of copper, valued at $5.54 billion. Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as ...
The Safford Mine is an open-pit copper mine located in Graham County, Arizona, eight miles (13 km) north of the city of Safford. The mine is owned and operated by Freeport-McMoran Copper & Gold. Construction on the Safford mine began in mid-2006. Production began December 26, 2007, with full production starting in 2008. [1]
Arizona is known as the Copper State because it produces two-thirds of US copper annually. Laramide copper porphyry deposits are common around Tucson and include the Twin Buttes, Sierrita-Esperanza, Rosemont, Silver Bell and Mission-Pima mines, as well as the historical Ajo mine to the west.
The Rosemont Copper property is located in Pima County, approximately 30 miles (48 km) southeast of Tucson. It straddles two historic mining districts: the Rosemont Mining District and the adjacent Helvetia Mining District. [7] [8] Copper became the focus of mining in the Santa Cruz Valley and elsewhere in Southern Arizona beginning in the late ...
The Bagdad Mine is a large copper mine located in Arizona, in the southwestern part of the United States.Bagdad represents one of the largest copper reserves in the United States and in the world, having estimated reserves of 873.6 million tonnes of ore grading 0.36% copper. [1]
The mine has one of the largest copper reserves in the United States and in the world. In 2018, the deposit had estimated proven and probable reserves of 3,369 million tonnes of ore grading 0.23% copper and 0.02% molybdenum, along with an additional resource of 1,378 million tonnes of mineralized material at 0.17% copper and 0.02% molybdenum ...
Full-scale mining using steam shovels was started in 1917, making the New Cornelia the first large open pit mine in Arizona. [6] Mining and treatment of the underlying but lower-grade copper sulfide orebody began in 1924. New Cornelia came under the ownership of Phelps Dodge in 1931 when Calumet and Arizona merged with Phelps Dodge.
A number of byproducts are recovered from American copper mining. In 2013, American copper mining produced 28,500 metric tons of molybdenum, worth about $700–800 million, which was 47% of total US production. [3] In 2014, copper mining produced about 15 metric tons of gold, worth $600 million, which represented 7% of US gold production. [4]