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The McArthur River Uranium Mine, in northern Saskatchewan, Canada, is the world's largest high-grade uranium deposit. The mine is owned by Cameco (70%), and Orano Canada (30%) (formerly Areva Resources Canada, formerly COGEMA Resources Inc.) Cameco is the mine operator. In 2012, McArthur River was the world's largest producing uranium mine ...
Mine in Operation as of June 2017 Bienfait Lignite Lignite: Bienfait: Prairie Mines & Royalty Ltd. Big Quill Lake Potassium Sulphate: Wynyard: Compass Minerals: Boundary Dam Lignite: Estevan: Prairie Mines & Royalty Ltd. Chaplin: Sodium sulphate: Chaplin: Saskatchewan Minerals Inc. Cigar Lake Mine: Uranium
In 2009, 20% of the world's primary uranium production came from mines in Canada. [2] 14.5% of the world production came from one mine, McArthur River. [3] Currently, the only producing area in Canada is northern Saskatchewan, although other areas have had active mines in the past. [4]
The first mine in the area was the Rabbit Lake Mine, which was discovered in 1968 by Gulf Mineral Resources and opened in 1975. The most important current mine is Cameco's McArthur River mine, the world's largest high-grade uranium mine. Other uranium mines in the Athabasca Basin include the Cigar Lake Mine, the Key Lake mine and the McClean ...
Although the official highway map of Saskatchewan shows the highway terminating at Key Lake, Google Maps and its aerial photography shows the road actually continues on to the McArthur River uranium mine further to the north. Access to this portion of the road is restricted, and is therefore not part of the official highway network.
Mining of this ore ceased in the late 1990s; the Key Lake mill now processes uranium ore from the McArthur River mine and from existing stockpiles on site. High-grade ore from McArthur river is blended with lower grade local rock before being passed through the mill. The mill has a permitted annual production capacity of 25 million pounds of U ...
In its northern section the McArthur Lake fault zone is parallel to the east shore of McArthur Lake, forming a steep scarp 75 to 100 feet (23 to 30 m) high. The fault zone runs south to a location about 1 mile (1.6 km) north of Galbraith Lake. [7]
Cameco operates uranium mines in North America and Kazakhstan, including McArthur River-Key Lake, the world's largest uranium producer, and Cigar Lake, the world's highest grade uranium mine, both in Saskatchewan. Other operations in Saskatchewan include a mine and mill at Rabbit Lake, currently in care and maintenance.