RFM Rimfire Minerals Corp Com Npv

(All figures in Canadian dollars) - Rimfire Minerals Corporation (TSX
VENTURE:RFM) is pleased to report results from diamond drilling at the Boulevard
Property, Yukon Territory. Drilling, funded by Northgate Minerals Corporation
(TSX:NGX) intersected gold mineralization in five of seven holes (totalling
524.9 metres) to follow up a trenching discovery in the summer of 2008 (see news
release dated September 23, 2008). Drilling tested the mineralization in the
discovery trench and targets along the apparent strike of this mineralization,
within a large multi-element soil geochemical anomaly. 


Prior to this drill program, gold mineralization was discovered at the Boulevard
in the first of three trenches to investigate portions of a 2.0 kilometre (km)
by 0.4 km arsenic-antimony-gold soil geochemical anomaly in an area of sparse
outcrop. The discovery trench, TRV08-01, returned 7.04 grams per tonne (g/t)
gold over 6.0 metres. Three drill holes tested this mineralization at depth,
returning 1.0 g/t gold over 1.8 metres in BV08-01, approximately 45 metres down
dip from the trench, and 0.9 g/t gold over 18 metres including 1.9 g/t gold over
3.5 metres in BV08-03 approximately 5 metres down dip from the trench. 


Two holes tested beneath a second mineralized trench (TRV08-02, 6.43 g/t gold
over 2.0 metres) located 100 metres southeast along trend from TRV08-01,
returned 0.8 g/t gold over 4.2 metres and 0.5 g/t gold over 5.5 metres at
approximately 20 and 30 metres down dip respectively. Two additional holes
targeted anomalous arsenic-gold-antimony geochemistry located 220 metres and
1110 metres along trend from the discovery area. BV08-07 returned 1.0 g/t gold
over 3.3 metres in a subtle style of mineralization not observed in previous
drill holes or trenches. 


Gold mineralization is hosted in strongly sericite +/- clay altered schists with
disseminated pyrite, arsenopyrite and stibnite. Sulphide mineralization is
finely disseminated in the wall rock of quartz vein arrays or occurs as massive
sulphide veins within the arrays. Mineralization-hosting quartz vein arrays
follow regional northwesterly structures along major contacts between
lithological packages. 


"Drilling and trenching in 2008 focused on a relatively small portion of a large
multi-element geochemical anomaly, resulting in the discovery of buried gold
mineralization," stated Mark Baknes VP exploration. "Our focus will be to
investigate the remainder of this anomaly and determine the best portions for
future trenching." 


The Boulevard Property is held jointly by Rimfire and Northgate without
underlying royalties, with each company having funded the initial $330,000 in
exploration that led to staking of the property. To date, Northgate has funded
approximately $1.39 million of the required $1.5 million in exploration
expenditures to earn an additional 10% interest (for a total of 60%) in the
property. 


This news release has been reviewed by Mark Baknes, M.Sc., P.Geo., VP
Exploration of Rimfire Minerals, a Qualified Person for the purpose of National
Instrument 43-101. 


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. Rimfire currently has in excess of two
years of operating capital, and finances approximately 80% of its exploration
through option and joint venture agreements. 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.


About Northgate Minerals Corporation

Northgate is a mid-tier gold and copper producer with mining operations,
development projects and exploration properties in Canada and Australia. The
company is forecasting record production of 392,000 ounces of unhedged gold
production in 2009 and is targeting growth through further acquisition
opportunities in stable mining jurisdictions around the world. Northgate is
listed on the Toronto Stock Exchange under the symbol NGX and on the NYSE
Alternext US (formerly AMEX) under the symbol NXG.


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.

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