Canadian Mining Journal


URANIUM: Denison extends Gryphon mineralization at Wheeler River

Gryphon deposit plan map. (Image: Denison Mines)

SASKATCHEWAN – Toronto-based Denison Mines, operator of the Wheeler River uranium project in the Athabasca Basin, says recent drilling has extended the new high grade unconformity-hosted mineralization up-dip and about 250 metres along strike to the northeast of the Gryphon deposit.

Preliminary radiometric equivalent grades (eU3O8) from drill hole WR-670D2 are highlighted by an interval of 4.3% over 4.3 metres, from mineralization occurring immediately above the sub-Athabasca unconformity. The new zone of E series unconformity mineralization now extends approximately 80 metres horizontally along the unconformity and remains open along strike to the northeast and southwest.

Denison says the summer 2017 drilling program is complete after 30 holes totaling 12,466 metres. This data will be included in the upcoming resource update for the Gryphon deposit.

Wheeler River is a joint venture of Denison (60%), Cameco (30%), and JCU (Canada) Exploration (10%).

Further information about Wheeler River is posted at