Denison announces start of 2012 drilling program at Wheeler River

TORONTO, ONTARIO--(Marketwire - Jan. 23, 2012) - Denison Mines Corp. (TSX:DML)(NYSE Amex:DNN) ("Denison" or the "Company") is pleased to announce that the 2012 winter drill program has begun at its 60% owned Wheeler River project located in the Athabasca Basin region of...