Atna Drilling Extends Gold Mineralization at Briggs Mine

GOLDEN, CO - Atna Resources Ltd. reported assay results from drilling
completed in February 2008 at the Briggs Mine in Inyo County, California. A
total of 2,905 feet were drilled in five angled reverse circulation holes
from the bottom of the BSU Pit. The drill holes and assays demonstrate that
gold mineralization is continuous in a relatively untested area between the
pit and the hanging wall of the 65-70 degree west-dipping Goldtooth
feeder/fault structure, which hosts zones of higher grade gold elsewhere.
The gold occurs in numerous bands of higher grade mineralization
inter-fingered with conventional pit grade material. The new data may
significantly improve the optimization study presently underway to maximize
gold extraction from the combined open pit/underground mineralization.
Gold mineralization at the Briggs Mine is hosted in siliceous gneiss
containing inter-fingered amphibolite bodies, forming the hanging wall
rocks of the ore bounding Goldtooth structure. The Goldtooth fault appears
to be the major feeder structure for gold mineralization at the Briggs
Mine. Gold mineralization occurs in two distinct styles: lower grade
mineralization, mined successfully in the past by open-pit methods, along
complexly faulted low-angle structures west of the major fault, and higher
grade gold mineralization in an envelope close to the Goldtooth fault.
The Briggs Mine is a permitted mining facility with ongoing residual
gold production from its existing leach pad. The mine has produced over
555,000 ounces of gold from open pit and underground mining since 1996.
Atna is presently working to restart mining operations and has commenced
plant and equipment refurbishment work at the site. Existing Technical
Reports compliant with SEC guide 7 are currently being rewritten as NI
43-101 compliant reports and a new study is in progress to optimize and
increase the size of existing mine designs.
The company's address is Suite 510 - 510 Burrard Street, Vancouver, BC V6C 3A8, 604.684.2285, fax: 604.684.8887.