GREAT BASIN GOLD UPDATES HOLLISTER MINERAL RESOURCES
MEASURED AND INDICATED GOLD EQUIVALENT OUNCES INCREASE BY 14%
September 9, 2010, Vancouver, BC - Great Basin Gold Ltd. (“Great Basin Gold” or the “Company”), (TSX:
GBG; NYSE Amex: GBG; JSE: GBG) announces a revised mineral resource estimate has been completed for
the Company’s Hollister Project on the Carlin Trend in Nevada, USA. At a cut-off grade of 0.25 oz/ton (8.57
g/t Au), the combined measured and indicated mineral resources contain 1.64 million gold equivalent ounces
grading 1.305 oz/ton (44.73 g/t Au) for gold and 10.3 oz/ton (355 g/t) for silver, an increase of 14% compared
to 1.44 million ounces in 2009. A further 1.27 million gold equivalent ounces are contained in inferred mineral
resources of 1.04 million tons at a grade of 0.59 oz/ton (20.19 g/t) for gold and 13.8 oz/ton (472 g/t) for silver.
Resource estimates for Hollister have continued to benefit significantly from the ongoing underground stope
delineation and infill/cover drilling, which has provided the basis for detailed planning for trial mining. An
additional 320 diamond core holes (totaling 109,731 feet or 33,295 meters) were completed in the period from
April 2009 to June 30, 2010, and the information from these holes has been integrated into the updated model.
The drilling program has provided infill data to delineate stopes for trial mining, and significantly improved the
understanding of the lateral and vertical geological continuity of the vein system. The trial mining has generated
geological mapping and channel sampling data that is used for empirical reconciliation of the resource wireframe
model versus actual excavated vein. As a result, more stringent parameters continue to be applied to measured
and indicated classifications. The resource estimate is based on all drilling and ore control channel sampling, and
reflects depletion of material mined up to June 30, 2010.
Results of the resource estimate to June 30, 2010 are tabulated below.