Inmet Options Rimfire's Grizzly Copper-Gold Project

Jason Weber, President and CEO of Rimfire Minerals Corporation (TSX VENTURE:RFM)
is pleased to report that Inmet Mining Corporation has signed a Letter Of Intent
(LOI) to an option on the Grizzly Property, in northwestern British Columbia.
Under the terms of the agreement, Inmet can earn a 60% interest by funding at
least $5 million in exploration at the Grizzly over four years, including
$800,000 in the first year. Inmet will make staged cash payments totalling
$250,000 over the earn-in period, including $50,000 upon signing of the LOI.


The Grizzly Property is approximately 50 kilometres east of the Galore Creek
project and within four kilometres of the partially completed Galore Creek
access road. The Grizzly copper-gold porphyry target shows many similarities to
Galore Creek, including its geological setting, volcanic host rock geochemistry,
regional magnetic and gravity geophysical signatures, hydrothermal alteration
and metal signature. A Rimfire crew resampled old trenches in 2006, yielding 38
metres averaging 0.74% copper and 1.1 g/t gold from a continuous chip sample.
The Grizzly showings occur within a one square kilometre copper, gold and
molybdenum-in-soil geochemical anomaly. A second area of anomalous copper, gold
and molybdenum soil geochemistry (the Mirko Grid) lies approximately 2 km
northwest. The cause of this anomaly has yet to be investigated.


"We are looking forward to working with Inmet to advance the Grizzly Project,"
stated Jason Weber, President and CEO of Rimfire Minerals. "Inmet's exploration
strategy focuses on the discovery of world class copper deposits. We are very
pleased that their team feels that the Grizzly may help them achieve their
goal."


Preliminary exploration plans for 2008 include a comprehensive program of
geological mapping, Induced Polarization (IP) geophysics, and trenching to
provide drill targets by year end.


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. 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, Cangold Limited, American Creek Resources Ltd., Island Arc
Exploration Corporation and BWG.


On behalf of Rimfire Minerals Corporation

Jason Weber, P.Geo., President & CEO