American Bonanza Gold Corp. - News Releases - American Bonanza Commences Underground Drilling at Copperstone

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Copperstone Air Photo showing Target Zones & Development

	July 14, 2003 American Bonanza Commences Underground Drilling at Copperstone
	AMERICAN BONANZA GOLD MINING CORP. ("Bonanza") is pleased to announce that underground drilling has commenced at the Copperstone Project in Arizona. The drill will produce NQ size core, which is large by underground drilling standards. This large diameter core is well suited to the bonanza grades present in the D-Zone and will provide large samples for assay in order to obtain the most reliable assays possible. Extensive core drilling from the underground station will provide detailed data sufficient to refine the D-Zone resource estimation into reserve-level definition. The drilling will also aid in stope design and will test the limits of the high grade gold mineralization at the D-Zone. Drilling results will be announced on an ongoing basis. Drilling is scheduled to continue until sufficient data has been collected for reserve estimation. Additional information about Bonanza can be obtained at the company's website: www.americanbonanza.com AMERICAN BONANZA GOLD MINING CORP. Brian Kirwin, President and Chief Executive Officer -30- CONTACT INFORMATION FOR FURTHER INFORMATION PLEASE CONTACT: American Bonanza Gold Mining Corp. Brian Kirwin President and Chief Executive Officer (775) 824-0707 or American Bonanza Gold Mining Corp. Giulio T. Bonifacio Executive Vice President and Chief Financial Officer (604) 699-0023 Website: www.americanbonanza.com The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this news release.

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