Exhibit 1

Denison Mines Corp.
Atrium on Bay, 595 Bay Street, Suite 402
Toronto, ON M5G 2C2
Ph. 416-979-1991 • Fx. 416-979-5893 • www.denisonmines.com

PRESS RELEASE

DENISON WEBCASTING ANNUAL MEETING OF SHAREHOLDERS

Toronto, ON – April 18, 2007... Denison Mines Corp. (“Denison” or the “Company”) (TSX:DML) (AMEX:DNN) is pleased to announce that it will provide a live webcast of its Annual Meeting of Shareholders being held at 10:30 a.m. (EST) today, April 18, 2007. The webcast is available through a link on Denison’s website www.denisonmines.com.

Denison Mines Corp. is the premier 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 of the four uranium mills operating in North America today. The combination of a diversified mining asset base with parallel ownership of milling infrastructure in highly politically stable jurisdictions has uniquely positioned the Company for growth and development into the future. The Company also has a strong exploration portfolio with large land positions in the United States, Canada and Mongolia. Correspondingly, the Company has one of the largest uranium exploration teams among intermediate uranium companies.

For further information, please contact:

E. Peter Farmer	(416) 979-1991 ext. 231
Ron Hochstein	(604) 689-7842
James Anderson	(416) 979-1991 ext. 372