Rimfire Announces Prospecting Discovery in Southern British Columbia

Rimfire Minerals Corporation, (TSX VENTURE:RFM), is pleased to announce
prospecting and geochemical results from its recently optioned Gillis Property
located 30 km southwest of Merritt, British Columbia. Three areas of gold
mineralization were identified, including 19.65 g/t gold from the only grab
sample at the Fort Showing. Gold discoveries at Gillis represent an exciting
exploration opportunity in an underexplored area of southern British Columbia.
The Gillis project is situated in the same physiographic region as the notable
epithermal gold occurrences in the Cretaceous-aged Spences Bridge Group which,
like the Gillis, were only recently discovered. Prior to 2005, there was no
recorded work on the Gillis property itself and Rimfire's high-grade gold
discovery is the first ever reported on the property. The property lies 600
metres west of the Coquihalla Highway and a power line traverses the northern
portion of the property.


In 2008, Rimfire carried out a mapping, prospecting and soil sampling program
(over 1700 samples) focusing on drainages anomalous in gold (defined by
government RGS sampling) on the western side of the property. Prospecting
resulted in the discovery of three areas of precious metal mineralization
highlighted by the Fort showing which returned 19.65 g/t gold and 201 g/t silver
from a 30 centimetre grab sample. This was taken from one vein located within a
30 metre discontinuous exposure in a creek bed exhibiting intense quartz
veining. Two other areas, the SAV and South Side, returned float and outcrop
sample values ranging from 1-4 g/t gold and 65-213 g/t silver. These occurrences
do not explain the extent and strength of the large gold, silver, arsenic and
antimony soil geochemical anomalies within which they lie.


"We are very encouraged by the results of our 2008 program at Gillis," stated
Mark Baknes, VP of Exploration. "Silt and soil geochemical sampling have proven
to be effective exploration tools. The anomalous area identified by soil
geochemistry measures 1.8 by 1.5 km and is anchored by new gold-silver prospects
in three areas. With all the soil geochemical results in hand, we look forward
to getting back to work on this new target."


Planning for a 2009 program at Gillis is underway. This program will likely
include additional prospecting, mapping and expansion of the soil geochemical
survey coverage. Backhoe trenching may also be used to investigate soil
geochemical anomalies.


Property Status

Rimfire has an option on the Gillis property whereby Rimfire can acquire 100%
interest by making staged cash payments and conducting $300,000 in exploration
over 4 years. The vendors will receive a share issuance upon definition of
500,000 oz gold resource and retain a 2.0% NSR, of which 1.5% may be purchased
by Rimfire.


About Rimfire

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