American Bonanza Gold Corp. - News Releases - American Bonanza Completes Construction of Underground Drill Bay at Copperstone

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	June 17, 2003 American Bonanza Completes Construction of Underground Drill Bay at Copperstone
	AMERICAN BONANZA GOLD MINING CORP. ("Bonanza") is pleased to announce that the development of an underground drill station at the Copperstone Project in Arizona has been completed and a core drilling contractor has been selected. Mobilization of the drill and crew will begin shortly and drilling is anticipated to begin towards the end of June. 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. The attached underground plan map of the D-Zone shows the underground drill station and planned drill hole program. Additional information about Bonanza can be obtained at 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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