Denison Mines Corp. Second Quarter 2010 Results-Telephone Conference to be Held on August 6 at 10:00 am (EDT)

TORONTO, ONTARIO -- (Marketwire) -- 07/29/10 -- Denison Mines Corp. ('Denison' or the 'Company') (TSX: DML)(NYSE Amex: DNN) announces that the Company will hold a telephone conference with a webcast presentation at 10:00 am Eastern Daylight Time on Friday, August 6, 2010 to discuss financial results for the quarter ending June 30, 2010.

Please call in 5-10 minutes before the conference starts and stay on the line (an operator will be available to assist you). The Call in number is (416) 340 - 8061.

To view the live presentation, please log on at www.denisonmines.com 10 minutes prior to the call.

Approximately two hours after the call:

--  a replay of the telephone conference will be available at (416) 695 -
    5800 and the passcode is 2383807; and
--  the presentation will be available at www.denisonmines.com.

About Denison

Denison Mines Corp. is an intermediate uranium producer in North America, with mining assets in the Athabasca Basin region of Saskatchewan, Canada and the southwest United States including Colorado, Utah, and Arizona. Further, the Company has ownership interests in two uranium mills in North America. Denison also has a strong exploration and development portfolio including the Phoenix discovery in the Athabasca basin as well as large land positions in the United States, Canada, Mongolia and Zambia.

Contacts:

Denison Mines Corp.

Ron Hochstein

President and Chief Executive Officer

(416) 979-1991 ext. 232


Denison Mines Corp.

James Anderson

Executive Vice President & Chief Financial Officer

(416) 979-1991 ext. 372