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The United States is a net exporter of copper ore and copper concentrate. In 2015, out of 1.25 million metric tons of recoverable copper metal extracted from mines, 320,000 tons of copper were exported in the form of ore and concentrate, to be smelted and refined elsewhere.
Gold-copper ore, concentrated and leached 16 (2018) [6] 16 Lisbon Valley San Juan County, Utah: Lisbon Valley Mining Company Copper ore, open pit, heap leached 10–15 (2018) [9] 17 Miami: Gila County, Arizona: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona: KGHM Polska Miedź: Porphyry copper open pit ...
Quincy Smelter site in July 2008 The Michigan Smelter between 1900 and 1906. There were seven copper smelters built in the Copper Country in the Upper Peninsula of Michigan: Calumet and Hecla smelter - Operated by Calumet and Hecla Mining Company and located north of Hubbell on the shore of Torch Lake; Detroit and Lake Superior Smelter - Near ...
This is a List of countries by copper smelter production for 2020, figures are for primary copper production. [1] ... United States: 315,000
Refining at the mines as well as at a copper refinery in Amarillo, Texas, produce 375,000,000 pounds (170,000,000 kg) of refined copper each year. ASARCO's hourly workers are primarily represented by the United Steelworkers. ASARCO has 20 superfund sites across the United States, and it is subject to considerable litigation over pollution.
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 byproducts. [2]
Kennecott Utah Copper LLC’s Garfield Smelter Stack is a 1,215-foot (370 m) high smokestack west of Magna, Utah, alongside Interstate 80 near the Great Salt Lake. It was built to disperse exhaust gases from the Kennecott Utah Copper smelter at Garfield, Utah. [ 1 ]
Many copper mines have existed in the Copper Country of the U.S. state of Michigan. These include both large-scale commercial ventures and small operations. There are hundreds of ancient mining pits in and around the Copper Country area, especially on Isle Royale (several of these were developed).