American Bonanza Gold Corp

Copperstone Air Photo showing Target Zones & Development

 June 03, 2002
Warrant Extension

 AMERICAN BONANZA GOLD MINING CORP. (the "Corporation") announces it has agreed, subject to the acceptance of the TSX Venture Exchange (the "Exchange") to extend the term of its non-transferrable common share warrants ("Warrants") expiring on June 18,2002 for a three month term to September 18, 2002, with an exercise price of $0.30 per common share.

Proceeds resulting from the exercise of Warrants will be used primarily for the further development of the Copperstone project. With reference to the Corporation's press release dated March 4, 2002 the Copperstone project has an estimated total resource of 2.1 million tons at an average uncut grade of 0.58 ounces of gold per ton, containing over 1.2 million ounces of gold. Additionally, the Corporation will drill test extensions of known high-grade mineralisation on its 100% owned Pamlico and Gold Bar project.

About American Bonanza

American Bonanza is engaged in the acquisition, exploration and development of high-grade precious metal properties. American Bonanza's innovative metallogenic techniques developed at considerable expense represent state-of-the-art tools for modern exploration in the Great Basin of Nevada and other areas. American Bonanza's metallogenic techniques have involved technical pioneering in terms of geological data analysis, hardware and software applications and will be the catalyst for future corporate growth.

Additional information about American Bonanza can be obtained at


(signed) Brian Kirwin

President and Chief Executive Officer

The TSX Venture Exchange has not reviewed and does not accept responsibility
for the adequacy or accuracy of this release.

For further information call or write:

Brian Kirwin, President and Chief Executive Officer (775) 824-0707

Giulio T. Bonifacio, Executive Vice President and Chief Financial Officer (604) 699-0023

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