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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 ...
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
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 ...
Once a mine closes, mining facilities that occupy a small area of the disturbed land can either be salvaged or town down. [13] The main visual and aesthetic impacts of mining are the open pits and waste rock disposal areas. Open-pit mining disturbs larger areas than underground mining making the visual impacts much greater. [13]
The Ekati Diamond Mine, often simply called Ekati, is Canada's first surface and underground diamond mine [1] and is owned by Burgundy Diamond Mines. It is located 310 km (190 mi) north-east of Yellowknife , [ 2 ] Northwest Territories , and about 200 km (120 mi) south of the Arctic Circle , near Lac de Gras .
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 ...
The proposed 2,800-hectare mountain top removal open-pit metallurgical coal mine is located near the Crowsnest Pass, just north of Blairmore, Alberta in the foothills of the Rocky Mountains. [6] It would have a 25-year lifespan and its annual production capacity is estimated at 4.5 million tonnes of coal.