Cluff Lake mine is decommissioned former uranium mine located in northern Saskatchewan, located 30 km east of the provincial border with Alberta and approximately 75 kilometres south of Lake Athabasca.

[2] Mining infrastructure consisted of a central mill, above ground tailings management area, 3 open pits, 2 underground mines, associated waste rock piles, and site infrastructure including the Cluff Lake airstrip and residences.

[2] Decommissioning mostly happened in the subsequent five years and was totally completed in 2013 once the camp residence and Cluff Lake Airport were removed.

Decommissioning activities were described by the Canadian Nuclear Safety Commission:"the Claude pit was completely filled in.

The portals and vents to the underground mines were closed and the TMA was contoured, covered and revegetated.