Denison Announces 88% Increase in Indicated Resources at Wheeler River With Updated Mineral Resource Estimate for the Gryphon Deposit http://www.marketwired.com/press-release/denison-announces-88-increase-indicated-resources-wheeler-river-with-updated-mineral-tsx-dml-2245252.htm TORONTO, ONTARIO--(Marketwired - Jan. 31, 2018)