Denison Intersects 5.0% eU3O8 Over 4.7 Metres at the Unconformity as Definition and Expansion Drilling Continues on the Gryphon Deposit at Wheeler River

Denison Mines (“Denison” or the “Company”) (TSX:DML)(NYSE MKT:DNN)(NYSE American:DNN) is pleased to report the intersection of new high-grade unconformity-hosted uranium mineralization in drill hole WR-689D3 approximately 250 metres along strike to the northeast and 200 metres up-dip of the Gryphon deposit, on the Company’s 60% owned Wheeler River project.
Preliminary radiometric equivalent probe results (“eU3O8”) from drill hole WR-689D3 are highlighted by an interval of 5.0% eU3O8 over 4.7 metres, including 8.5% eU3O8 over 2.7 metres, from mineralization occurring immediately above the sub-Athabasca unconformity that is comprised of massive to semi-massive uraninite (pitchblende) associated with hydrothermal hematite and clay alteration.
David Cates, Denison’s President and CEO, commented:

“The notable high-grade mineralization intersected at the unconformity, immediately northeast of the Gryphon deposit, presents our Saskatoon based exploration team with a new and exciting target for additional exploration – with the potential for further drilling to continue to expand resources at Gryphon.
Coupled with a steady stream of impressive high-grade intersections within the basement-hosted D series lenses, the prospect of significant growth in our estimate of resources for the Gryphon deposit continues to increase as we work towards completing an updated resource estimate following the completion of the summer drilling program.”

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