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The mine was opened by the Cyprus Anvil Mining Corporation in 1969, which was formed to mine the deposit. [19] From the late 1960s until 1982 the mine was one of the largest lead-zinc mines in the world. At one time it was the largest open-pit mine in the world. During its history, 320 million tonnes of waste rock was removed to reach the ore.
East Pit of Sherman Mine in Temagami, Ontario, Canada. Adams Mine – abandoned mine in Kirkland Lake, Ontario; Athabasca oil sands – second largest proven petroleum reserve in the world as of 2013, located in northern Alberta along the Athabasca river. Barkerville Mine - Gold Mine near Wells, British Columbia
Mining of the original Bethlehem Copper pits ceased in 1982. The Bethlehem concentrator continued to operate on ore from the Valley Copper deposit until June 1989. Production on the Valley Copper mine, now the largest mine and most noticeable feature, began in January 1983. [5] For fifty years the ore was dug using shovels and open pit methods ...
Mount Polley mine is a Canadian gold and copper mine located in British Columbia near the towns of Williams Lake and Likely. It consists of two open-pit sites with an underground mining component and is owned and operated by the Mount Polley Mining Corporation, a wholly owned subsidiary of Imperial Metals. In 2013, the mine produced an output ...
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, [1] is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. In contrast, deeper mineral ...
The Mary River Mine is an open-pit iron ore mine in the Mary River area of Baffin Island, Canada. [3]: 2 It is operated by the Baffinland Iron Mines Corporation (BIMC).As of 2021, the operation consists of an open-pit mine, two work camps for hundreds of workers, a tote road—from the Mary River site to Milne Inlet—and port infrastructure at Milne Inlet. [1]
[citation needed] The mine was an open-pit mine from 1901 to 1908, and was transitioned to an underground mine in 1906. [citation needed] Currently, the mining methods used are bulk mining with the vertical retreat method (95% of production), and selective stoping with the mechanized cut-and-fill method (5% of ore production). [citation needed]
The Québec Cartier Mining Company opened the Lake Jeannine iron mine to the southwest of Fire Lake in 1961, near the company-built town of Gagnon. The company made investments in the 1970s at Mont-Wright, Fermont and Fire Lake. [4] The open pit mine near Fire Lake was exploited by Sidbec-Normines, a private-public consortium, between 1977 and ...