COEUR D’ALENE, Idaho, May 12, 2008 (PRIME NEWSWIRE) -- Timberline Resources Corporation (AMEX:TLR stock) ("Timberline") announced today that its common shares have been listed on the American Stock Exchange (AMEX) effective at the market opening today under the trading symbol "TLR". The AMEX specialist for Timberline will be J. Streicher & Co., LLC. Timberline common shares will cease trading on the OTC Bulletin Board, effective immediately.

Timberline Resources Corporation has taken the complementary businesses of mining services and mineral exploration and combined them into a unique, forward-thinking investment vehicle that provides investors exposure to both the "picks and shovels" and "blue sky" aspects of the mining industry.

Timberline has contract drilling subsidiaries in the western United States and Mexico and an exploration division focused on high-potential, district-scale gold projects. With its anticipated acquisition of a premier American underground mine contractor, Small Mine Development, Timberline will strengthen its position as an emerging, vertically-integrated resource company. Timberline is listed on the American Stock Exchange and trades under the symbol "TLR".

Statements contained herein that are not based upon current or historical fact are forward-looking in nature. Such forward-looking statements reflect the Company's expectations about its future operating results, performance and opportunities that involve substantial risks and uncertainties. When used herein, the words "anticipate," "believe," "estimate," "plan," "intend" and "expect" and similar expressions, as they relate to Timberline Resources Corporation, or its management, are intended to identify such forward-looking statements. These forward-looking statements are based on information currently available to the Company and are subject to a number of risks, uncertainties, and other factors that could cause the Company's actual results, performance, prospects, and opportunities to differ materially from those expressed in, or implied by, these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, such factors, including risk factors, discussed in the Company's Annual Report on Form 10-KSB for the year ended September 30, 2007. Except as required by the Federal Securities law, the Company does not undertake any obligation to release publicly any revisions to any forward-looking statements.

CONTACT: Timberline Resources Corporation
         John Swallow, Chairman
         208.664.4859