New Member Joins Rimfire Team, Incentive Stock Options Granted

VANCOUVER, BRITISH COLUMBIA–(EMWNews – July 17, 2008) – Jason Weber, President and CEO of Rimfire Minerals Corporation (TSX VENTURE:RFM), is pleased to welcome Patrick Moodie to the Rimfire team as Manager, Corporate Communications. Prior to joining Rimfire, Mr. Moodie held the position of Investor Relations Manager for a junior company focused on the exploration and development of renewable energy resources. Patrick holds a Bachelors Degree in Economics from the University of Alberta and has completed the Canadian Securities Course. He will be a valuable addition to the Rimfire team and will play key role in Rimfire’s communications strategy and delivering news to shareholders and the investment community.

Incentive Stock Options Granted

Rimfire has granted a total of 165,000 incentive stock options to officers and employees of the Company at a price of $0.90 expiring July 16, 2013. All grants exceeding 25,000 per optionee will vest over two years. Options are granted in accordance with the Company’s Incentive Stock Option plan approved at the Annual General Meeting held June 20, 2008.

About Rimfire

Rimfire Minerals Corporation is a mineral exploration company with an extensive portfolio of highly prospective gold and silver properties in western North America and Australia. Rimfire Minerals is well financed and maintains an aggressive approach to exploration. Current and former partners include AngloGold Ashanti Limited, Barrick Gold Corporation, Newmont Mining Company, Inmet Mining Corporation, Northgate Minerals Corporation, Fronteer Development Group, Rubicon Minerals Corporation, American Creek Resources Ltd., Island Arc Exploration Corporation and BWG.

On behalf of Rimfire Minerals Corporation

Jason Weber, P.Geo., President & CEO

CAUTIONARY STATEMENT: This News Release includes certain “forward-looking statements”. Other than statements of historical fact, all statements included in this release, including, without limitation, statements regarding future plans and objectives of Rimfire Minerals Corporation, are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from Rimfire’s expectations are the risks detailed herein and from time to time in the filings made by Rimfire Minerals Corporation with securities regulators. Those filings can be found on the Internet at http://www.sedar.com and http://www.sec.gov/edgar/searchedgar/companysearch.html.

No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.