The Rosemont copper-molybdenum-silver deposit is located in Pima County, Arizona, USA approximately 30 miles (50 km) southeast of the city of Tucson, Arizona. Augusta Resource Corporation (Augusta) has recently completed a 40-hole, 68,727 feet (20,948 meters) diamond drilling program on the deposit, consisting of resource, geotechnical, and metallurgical holes. Previously in 2005, Augusta carried out a 15-hole, 27,402 feet (8,352 meters) diamond drilling program. The results of both of these drilling have been integrated with approximately 210,000 feet (64,000 m) of previous drilling, conducted by other companies prior to Augusta's involvement, to estimate the mineral resources presented in this report. This report provides for an updated mineral resource statement from that of the previous WLRC Technical Report dated April 21, 2006.
Rose, W.L. 2008. 2008 Mineral Resource Update for the Rosemont Project Pima County, Arizona, USA. Prepared for Augusta Resource Corporation. Lakewood, CO: WLR Consulting, Inc. December 4.