Rimfire acquired the core holdings of the Kizmet Project in 2003
and early 2004.2 million over 3 years including a
commitment of US$400,000 in the first year. Caulfield, President

The TSX Venture Exchange has not reviewed and does not accept
responsibility for the adequacy or accuracy of this release.
The mine has been closed since 1969. The host rocks are cordierite quartzite
and mica schists which grade into biotite-andalusite bearing quartzite.com Nick L.net

Forward Looking Statements.

petrology aggregates

Rimfire now
includes four gold producers as active partners, including the
world's three largest.
The Bergslagen district lies immediately to the north-west of Stockholm
and covers an area of approximately 200 kms east-west by 150 kms north-south. The region has undergone several phases of folding and
has been intruded by at least two generations of granitoids. The ore-bodies, which are confined to
two northeast striking skarn-carbonate horizons, are surrounded by an
alteration aureole. The alteration of the
tuff has resulted in the development of different quartzitic rocks.3% between the years 1915 and 1919. Such
statements reflect the current risks, uncertainties and assumptions related to
certain factors including, without limitations, competitive factors, general
economic conditions , customer relations, relationships with vendors and
strategic partners, the interest rate environment , governmental regulation and
supervision, seasonality, technological change, changes in industry practices,
and one-time events. Neither the TSX
Venture Exchange nor the Frankfurt Deutsche Borse have reviewed the
information contained herein, and, therefore, do not accept responsibility for
the adequacy or the accuracy of this release.

geology metamorphic

Based on the Company's knowledge
that similar Cretaceous -aged igneous rocks with the same anomalous
RGS geochemical signature hosts high sulphidation gold -silver-copper
mineralization at its Thorn Property, a joint venture with Cangold
Limited, Rimfire acquired key targets totalling 185 sq km. At Rimfire's election,
Barrick would be required to arrange Rimfire's share of project
financing for which Barrick would earn an additional 5% interest.

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. Bergslagen is a
highly mineralized district and one of the most important ore districts in
Sweden, containing deposits of iron, manganese, base-metal and silver
sulphides. The
mineral associations occurring in the aureole seem to be the result of
metamorphic differentiation, and sulphide minerals have been formed later than
the silicates. Pyrite, sphalerite and galena
are the main ore minerals in skarn and carbonate rocks. Silver in the ores usually amounted to less than
200 g/t and gold less than 1 g/t. An assay of fairly pure chalcopyrite (copper ore) gave 140 g/t
silver and 9 g/t gold.

study rocks

Barrick can increase its
interest in the Kizmet project to 65% by funding exploration
expenditures totalling US$1.

Tumi Resources Stakes the Kalvbacken and Tomtebo Silver/Base Metal Prospects Bergslagen District Sweden

In quartzitic rocks, chalcopyrite and pyrrhotite are the
dominating ore minerals.

minerals which

Recent mapping and age-dating identified a
Cretaceous-aged belt of volcanic and associated intrusive rocks
distinct in age with coincident strong gold-silver-arsenic
geochemical signature as highlighted in regional government
geochemical silt sampling (RGS).

Rimfire Minerals Corporation (TSX VENTURE:RFM)

These elongated skarn-carbonate bodies have been brecciated and partly , or
entirely, replaced by sulphide ore.0% to 5.

petrology earth

News Editors

VANCOUVER, British Columbia ----Rimfire Minerals Corporation (TSX VENTURE:RFM) - David
Caulfield, President and CEO of Rimfire Minerals Corporation is
pleased to announce that the Company has signed a memorandum of
understanding (MOU) with Barrick Gold Corporation (TSX:ABX) to jointly
explore the Kizmet Project, 95 km southeast of Atlin, in northwestern
British Columbia.

"Barrick is pleased to be exploring the Kizmet project with
Rimfire, and we will continue to explore for opportunities throughout
Canada and around the world," states Alex Davidson, Executive Vice
President of Exploration, Barrick Gold Corporation . Caulfield.

On behalf of Rimfire Minerals Corporation

David A.
The historic Kalvbacken sulphide-ore deposit is situated 17 km southeast
of Falun in central Sweden. Between 1836 and 1837 , 1,841 tons of copper and
1,077 tons of sulphur were produced. The copper content of the ore varied from
3. The average ore grade during the
last phase of mining, between 1965 and 1969, was about 1% copper, 1% zinc and
35% sulphur.

science rocks

"

Under the MOU, Barrick has agreed to make a CDN$75,000 cash
payment to Rimfire, and to add claims totalling 680 sq.
Copper ore at the Tomtebo mine occurred in small folds as lenses or
stringers in an anticline.
The Company intends to obtain the historical records of these mineral
fields for detailed study and believes the area has excellent potential for
discovering new silver/base metal occurrences within the mining properties. This Company Press Release contains certain
"forward-looking" statements and information relating to the Company that are
based on the beliefs of the Company's management as well as assumptions made
by and information currently available to the Company's management.

are sedimentary

, Newmont Mining Company,
Northgate Minerals Corporation , Cangold Limited and Serengeti
Resources Inc. 31 - Tumi Resources Limited (the
"Company") (TSXv - TM; OTCBB - TUMIF; Frankfurt - TUY). David
Henstridge, President, is pleased to announce the acquisition, through
staking, of the Kalvbacken (168 hectares) and the Tomtebo (80 hectares)
historic mining properties within the Bergslagen district of south-central
Sweden.5% Zinc, 1,837 tonnes of pyritic
(sulphur) ore averaging about 34% sulphur, and 9,951 tonnes of "enriched" ore.

Earliest records indicate that the Tomtebo mine was first
discovered and developed in the mid-seventeenth century, but detailed
production records were kept only in the early part of the twentieth century .

geology petrology

Rimfire and Barrick Sign Memorandum of Understanding

In addition to Barrick, Rimfire is partnered
with AngloGold (USA) Exploration Inc. TSXv - TM
Frankfurt - TUY
OTCBB - TUMIF

VANCOUVER, Jan. Chalcopyrite,
pyrrhotite, antimony-sulphides, arsenopyrite, and magnetite are generally
minor constituents. Total production is estimated at 600,000 tons
zinc-lead-copper ore, but no grades are available.4% copper,
14,253 tonnes of zinc ore averaging 27. These
rocks are derived from highly potassic rhyolite tuffs.

study earth

On behalf of the Board,

"David Henstridge"
---------------------------------
David Henstridge, President + CEO

Company Contact: Investor Information Contact:
Mariana Bermudez at (604 ) 699-0202 Mining Interactive
or email: mbermudez@chasemgt.

study sedimentary

Reconnaissance silt and soil geochemistry, mapping and prospecting
was completed on four target areas of the Kizmet in 2004, with
positive results.

"We feel the newly recognized belt has excellent potential to
host high sulphidation epithermal gold systems like the Thorn, and
Barrick are acknowledged world experts on these type of deposits,"
explained Mr.
The district is underlain by volcanics and sediments which are more than
2 billion years old.
The historic Tomtebo mine is located 25 km southeast of the city of
Falun, Sweden.

The study of rocks, which are aggregates of minerals.

sciences petrology

An additional 10 % can be
earned by funding exploration, at no less than US$500,000 per year,
through to a positive decision to mine.

earth study

"We are pleased to be partnered with their
exploration team. km to the
property , to form a 50:50 joint venture. Mr. The ores are located in a tuff-quartzite complex
near the contact with Archean granite. The alteration zone, running more or less parallel with
the granite contact , is bounded by granite in the north.
The deposit consists of two stock-like ore bodies, Kalvbicksmalmen and
Bligruvemalmen, which are parallel to the main regional tectonic fold axes.
The Kalvbacken mine was abandoned in 1963, operating intermittently from
the sixteenth century. A table from a report from
the early part of the last century shows that between 1915 and 1920, a total
of 62,899 tonnes of ore were mined, which included 270 tonnes of copper ore
mined between 1915 and 1916 that had an average grade of about 3.
The qualified person for the Kalvbacken and the Tomtebo Project,
David Henstridge, a Fellow of the Australian Institute of Mining and
Metallurgy and a Member of the Australian Institute of Geoscientists, has
verified the contents of this news release.

earth sciences

The surrounding quartzitic and tuffaceous
rocks are relatively poor in sulphide-minerals. Nicolaas at (604) 657-4058
website: nicolaas@attglobal. Should any one or more of these risks or uncertainties
materialize, or should any underlying assumptions prove incorrect, actual
results may vary materially from those described herein.