GOLDEN, Colo., April 13, 2012 /PRNewswire/ -- Atna Resources Ltd. ("Atna" or the "Company") (TSX:ATN/ OTCBB:ATNAF) reports that certain references to the technical report on its Columbia Project in the recently filed Form 20-F (20-F) / Annual Information Form (AIF) and annual Management Discussion and Analysis (MD&A), for the year ending December 31, 2011, inadvertently cited the September 2009 technical report on its Columbia Gold Property which has been superseded by the report dated June 2010. Consequently, the Company has amended these disclosure documents by replacing the references to the Columbia resource estimate and technical report dated September 9, 2009, with references to the "NI 43-101 Technical Report and Preliminary Assessment on the Columbia Project, Lewis and Clark County, Montana" completed in June 2010.
For additional information, including the details of these amendments, please visit our website at www.atna.com.
The above described amendments should be read in conjunction with the above-referenced Form 20-F/AIF and annual MD&A, including the therein defined terms and discussions of risk factors. The Company's filings are available on SEDAR (www.sedar.com) and EDGAR (www.sec.gov/edgar.shtml).
FOR FURTHER INFORMATION, CONTACT:
James Hesketh, President and CEO - (303) 278-8464
Valerie Kimball, Investor Relations - toll free (877) 692-8182
SOURCE Atna Resources Ltd.