McArthur River uranium mine

The uranium McArthur River mine in the Canadian province of Saskatchewan is the world's largest producer of uranium. The owners of the mine, the company Cameco and AREVA.


The deposit was discovered in 1988 on behalf of Cameco. The mine has been in operation since 2000.


The mine is located in the southeastern part of the Athabasca Basin, where almost all known uranium deposits in Canada are. It is a Proterozoic unconformity -bound uranium deposit with rock that (, VI ) oxide U3O8 measured as uranium ( V) contains an average of 24.3% uranium oxide.

The deposit will be mined at a depth of 500 m to 600 m and produced 7,199 tons of uranium in 2007.