The McClean Lake joint venture (Denison - 22.5%) in northern Saskatchewan includes the deposits of the Sue Trend, and the JEB, Caribou, and McClean Lake sandstone hosted deposits. The collective deposits at the McClean project represent the 5th largest uranium resource/reserve in the Athabasca basin.
The Midwest project, owned 25.17% by Denison, 69.16% by ARC and 5.67% by OURD, is host to two significant uranium deposits: the Midwest deposit, discovered in 1978; and the Midwest A deposit, which was discovered in 2004/2005. Midwest is located approximately 15 kilometres from the McClean Lake mill where the Midwest ore is planned to be processed.
Denison has a 60% interest in the Wheeler River Joint Venture consisting of 19 unsurveyed mineral claims totaling 11,720 hectares in northern Saskatchewan. Denison has been the operator since November 10, 2004. The other partners are Cameco (30%) and JCU (Canada) Exploration Company, Limited ("JCU") (10%).