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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
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 .
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 ...
Surface mining began in Voisey's Bay in 2005 in order to access the nickel deposit. [7] [8] The bulk carrier ship Umiak I was commissioned in May 2006 to transport ore from the mine. [9] [10] In July 2015, the ownership board of directors approved the construction of the underground phase of the Voisey's Bay Mine.
In this process, the ores are mined using open-pit mining technology. The mined ore is then crushed for size reduction. Hot water at 50–80 °C (122–176 °F) is added to the ore and the formed slurry is transported using hydrotransport line to a primary separation vessel (PSV) where bitumen is recovered by flotation as bitumen froth.
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.
The transition from open pit to underground mining was completed in September 2012. [10] In September 2012, Diavik completed the construction of the Northwest Territories' first large-scale wind farm. The four-turbine, 9.2-megawatt facility provides 11 per cent (2015) of the Diavik mine's annual power needs and operates at 98% availability.