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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.
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: Freeport-McMoRan: Copper ore, leached 5 (2021) [2] 18 Carlota Gila County, Arizona ...
Mines in Arizona — historic and present day sites of mining ... Cerro Colorado Mine; ... Darling Cinder Pit; G. Growler Mine Area; K. Kayenta Mine; M. Montana mine ...
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 Underground
Chloride is a onetime silver mining camp in Mohave County, Arizona, United States, and is considered the oldest continuously inhabited mining town in the state. [4] The town is a census-designated place (CDP), with a population at the 2020 census of 229. [3] Chloride has a ZIP Code of 86431.
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Coal mining in Colorado is known to negatively impact both air and water quality. [11] [12] The West Elk Mine in Gunnison County is the largest methane emitter in Colorado, and in 2017 it emitted a quantity of methane equivalent to 98,000 cars. [13] Colorado's 8 remaining coal mines use an unknown quantity of water each year. [14]
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