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News Archive - Wednesday, May 30, 2007
Pogo Area Drilling Program Underway
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PR07-12

Vancouver, BC -- May 30, 2007: David Caulfield, President and CEO of
Rimfire Minerals Corporation is pleased to announce that drilling has
commenced on the Company's wholly-owned Goodpaster properties in Alaska
currently under option to Rubicon Minerals Corporation. Rubicon will
fund $1 million in exploration expenditures to test high priority
targets on the Cal-Surf Property, where previous work by Rimfire
identified well developed gold+/-bismuth soil geochemical anomalies.
Exploration in the district is targeting high grade gold-bearing quartz
vein deposits similar to those currently in production at the Pogo Gold
Mine. The Cal-Surf Property is located 15 kilometres from the Pogo Gold
Mine which is 145 kilometres southeast of Fairbanks, Alaska.

Rimfire has held key ground in the district since the discovery of the
Pogo Deposit was announced in the late 1990's, identifying gold targets
on four individual properties on trend and in the vicinity of the Pogo
Mine property. In January of 2007, Rimfire's 182,320 acre land package
was optioned to Evanachan Limited, a private company controlled by
ex-Goldcorp Chairman and CEO Robert McEwen. In a recently completed $22
million transaction, Rubicon purchased Evanachan's Alaskan holdings,
including Rimfire's properties. Rubicon has the option to earn a 60%
interest in the group of four properties by completing $4.8 million in
exploration over six years. Rubicon can earn another 10% by completing
a feasibility study and a further 5%, at Rimfire's election, by
providing a project financing loan to be repaid from Rimfire's free
cash flow upon production.


Rimfire is the operator of the project and has contracted Equity
Engineering Ltd. to complete the current program. Rimfire's Qualified
Person, as defined by National Instrument 43-101 is Mark Baknes,
P.Geo., Vice President of Exploration.


About Rimfire

Rimfire Minerals Corporation is an aggressive, well-financed mineral
exploration company with a portfolio of highly prospective gold and
silver properties in western North America. Rimfire is partnered with
Newmont Mining Company, Northgate Minerals Corporation, Fronteer
Development Group, Rubicon Minerals Corporation, Cangold Limited,
American Creek Resources Ltd., Island Arc Exploration Corporation,
Arcus Development Group Inc. and BWG.


On behalf of Rimfire Minerals Corporation

"David A. Caulfield"

David A. Caulfield, President

The TSX Venture Exchange has not reviewed and does not accept
responsibility for the adequacy or accuracy of this release.

TSX-V:RFMSuite 700 - 700 West Pender
St.
Vancouver, B.C. Canada V6C 1G8
T: (604)669-6660 F: (604)669-0898 E-mail: info@rimfire.bc.ca
Web Site: www.rimfireminerals.com
Contact: David Caulfield or Jason WeberNews Release

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Copyright (c) 2007 RIMFIRE MINERALS CORPORATION (RFM) All rights
reserved. For more information visit our website at
http://www.rimfire.bc.ca/ or send mailto:info@rimfire.bc.ca
Message sent on Wed May 30, 2007 at 10:15:08 AM Pacific Time
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