Exhibit 23.5

[Letterhead of Mine Development Associates]

CONSENT OF MINE DEVELOPMENT ASSOCIATES

The undersigned, Mine Development Associates, hereby states as follows:

Our firm assisted with technical studies, completed in 2003 (the “2003 Technical Studies”), concerning mineralized material contained in the Long Valley, Hasbrouck, Three Hills and Wildcat properties, for Vista Gold Corp. (the “Company”), portions of which are summarized under the captions “Item 2. Properties — Long Valley — Geology”; “Item 2. Properties — Hasbrouck — Geology”; “Item 2. Properties — Three Hills — Geology” and “Item 2. Properties — Wildcat — Geology” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2003 (the “Form 10-K”), which in turn is incorporated by reference in this Registration Statement on Form S-3 (this “Registration Statement”), to be filed with the United States Securities and Exchange Commission.

We hereby consent to the incorporation by reference in this Registration Statement of the summary information concerning the 2003 Technical Studies, including the references to our firm included with such information, as set forth above in the Form 10-K.

Mine Development Associates
By:	/S/    NEIL B. PRENN
	Name:	Neil B. Prenn
	Title:	President

Date: October 17, 2004