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However, the remote desert location made mining generally uneconomic without onsite treatment. The area was mostly idle until the New Cornelia mine opened in 1917 as the first large open-pit mine in Arizona. Mining continued in the district until 1983. The district produced 6.304 billion pounds of copper.
Denison Mines planned to begin mining its Arizona One mine in 2007. [9] The deposit is in a breccia pipe on the Colorado Plateau of northern Arizona. [ 10 ] In March 2011, the State of Arizona issued air and water permits to Denison which would allow uranium mining to resume at three locations north of the Grand Canyon, subject to federal approval.
Underground mine producing nickel and copper concentrates 18 (2018) [8] 15 Phoenix Lander County, Nevada: Newmont Mining Corporation: 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 ...
Bear Run Mine: Peabody Bear Run Mining Surface Indiana: 7,271,178 Falkirk Mine: North American Coal Corporation [7] Surface North Dakota: 7,219,086 Three Oaks Mine: Luminant Mining Surface Texas 7,186,478 Harrison County Mine: CONSOL Energy [9] Underground [11] West Virginia 7,131,341 Tunnel Ridge Mine: Tunnel Ridge
The mine is located in southern Pima County, southwest of Tucson and west of Green Valley-Sahuarita. Originally developed as an underground mine in 1907, the Sierrita open pit has been in operation since 1959 and is a copper and molybdenum mining complex, operating on a porphyry copper deposit with oxide, secondary sulfide, and primary sulfide ...
Morenci Mine – copper mine in Greenlee County, Arizona; Mountain Iron Mine – iron mine in Mountain Iron, Minnesota; Robinson Mine – copper and gold mine in Ruth, Nevada [8] New Cornelia mine – inactive copper mine near Ajo, Arizona; Ray mine – Asarco copper mine located in Pinal county, Arizona; Red Dog mine – zinc and lead mine in ...
Mines in Arizona — historic and present day sites of mining operations in Arizona Subcategories. This category has the following 2 subcategories, out of 2 total ...
Arizona breccia pipe uranium mineralization; 1983 Arizona copper mine strike; Arizona Department of Mines and Mineral Resources; Arizona Mining and Mineral Museum; Arizona State Mine Inspector; Artillery Mountains