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Lundin Mining: 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 ...
This was hand-excavated to 201 m (660 ft) by 1911, and the hand-dug pit was sightly larger than the Big Hole. The Palabora Open Pit – mechanically excavated by Palabora Mining Company, in Phalaborwa, Limpopo Province. The pit is 898m deep and 1846m across on top. [5] Voorspoed diamond mine
A railroad link in 1906 made it economically possible to start large scale open pit mining of the large porphyry copper deposits, and the first copper was produced in 1908. [41]: 245–246 Mining was halted in recent years due to low copper prices, but the open pit was reopened in 2004 by Quadra Mining Ltd. In 2007, the mine produced 121 ...
Flambeau Mine map. The Flambeau Mine was an open pit mine of a copper-gold deposit near the Flambeau River, south of Ladysmith, Wisconsin, United States.It was mined by a subsidiary of Kennecott Minerals between 1993 and 1997, and returned to a fairly natural state after.
Woodward Iron Company: 1918–1971 One of only two shaft mines dug in the Birmingham District, and the last ore mine to operate in the region, closing in 1971. Sloss Mines: Alabama 33.39816°N 86.93276°W Red Mountain: Sloss Iron and Steel Company: 1882–1960s A group of mines in southwestern Jefferson County, Alabama. [2]
Gogebic Taconite is an iron-ore mining company in development stage, based in Florida, [1] with a presence in Hurley, Wisconsin. [2] [3] The company, owned by the larger mining organizations, Cline Resource and Development Group, is at the center of a dispute among politicians, community groups, environmental organizations, Native American tribal councils and various stakeholders because of a ...
Gilbert (pop. 1,799) is the location of Lake Ore-be-gone, an artificial lake created by flooding three open-pit iron ore mines. Hibbing (pop. 16,361) is the largest city by area in the state of Minnesota. It is home to the Hull–Rust–Mahoning Open Pit Iron Mine, one of the world's largest open pit iron mines.
Uranium mining companies of the United States (1 C, 3 P) Pages in category "Mining companies of the United States" The following 57 pages are in this category, out of 57 total.