Duluth Metals Announces Higher Grade Assays in First Hole From Nokomis Winter Drilling Program

TORONTO, March 22, 2010 - Duluth Metals Limited ("Duluth Metals") (TSX: DM) (TSX:DM.U) today
announced new assays for the first hole drilled in the 2010 Winter Drilling
Program on the Nokomis Deposit, Ely Minnesota. To date, nine holes have been
drilled, with assay results having been received for one hole. Hole MEX-158,
has intersected 70.0 feet of 1.189% copper, 0.328% nickel, 3.6 g/t silver and
1.404 grams per tonne (g/t) Total Precious Metals (TPM (equal sign)
Platinum+Palladium+Gold) (Cu Equivalent(x) of 2.69%) within a 180.0 foot
section of 0.913% copper, 0.248% nickel, 2.9 g/t silver and 1.039 g/t TPM (Cu
Equivalent(x) of 2.06%).

The winter drilling program has been cut short from the scheduled 13
holes due to unseasonable warm weather. In total, approximately 7,620 meters
(25,000 feet) have been drilled. Currently the three drill rigs are being
moved to new locations for the start of the Spring 2010 program which will
entail approximately 14 holes or approximately 18,288 meters (60,000 feet).
The focus of the drilling will be to further evaluate and quantify the
significantly higher grade copper, nickel, platinum, palladium, gold and
silver zones in portions of the Nokomis Deposit.

A more detailed summary of the assay results for MEX-158 can be found in
the table below. True width is estimated at about 90% of core length.

       HOLE           ZONE         FROM    TO   LENGTH  COPPER  NICKEL   TPM
                                  (feet) (feet) (feet)    (%)     (%)   (g/t)

     MEX-158  (at)0.3% Cu cut-off  2098   2353    255    0.785   0.212  0.862
              (at)0.5% Cu cut-off  2103   2283    180    0.913   0.248  1.039
                    including      2128   2198     70    1.189   0.328  1.404
              (at)0.5% Cu cut-off  2298   2323     25    0.666   0.164  0.603

Complete gold, platinum, and palladium assays for MEX-158 are as follows:

                                                                  PLAT  PALLA
       HOLE           ZONE         FROM    TO   LENGTH    GOLD   -INUM  -DIUM
                                  (feet) (feet) (feet)   (g/t)   (g/t)  (g/t)

     MEX-158  (at)0.3% Cu cut-off  2098   2353    255    0.173   0.214  0.475
              (at)0.5% Cu cut-off  2103   2283    180    0.219   0.259  0.561
                    including      2128   2198     70    0.402   0.288  0.715
              (at)0.5% Cu cut-off  2298   2323     25    0.081   0.155  0.367

"Our objective with the 2010 Winter Drill Program has been to in-fill
drill areas that will allow Inferred Resource zones to be converted into
Indicated Resources in future resource calculations", stated Dr. Henry J.
Sandri, President and CEO of Duluth Metals. "In addition, a few of the holes
are designed as step-out holes to continue to test the current boundaries of
the deposit. With forty percent of the property still unexplored, we have
significant upside potential that Nokomis could increase from its current
size. Additionally, holes like MEX-158 continue to prove that there are
large, higher grade zones within the deposit; the 70 foot high grade section
of MEX-158 represents a 78% grade increase over the global Nokomis average.
Not only are the zones producing higher grade, the tonnage in these zones is
becoming quite significant."

A map showing the location of drill hole MEX-158 can be viewed on the
Company website at www.duluthmetals.com under this press release.

For the 2010 Winter Drill Program, half core samples are being prepared
at ALS Chemex Ltd. laboratories in Thunder Bay and then shipped to its
analytical facilities in Vancouver. Samples are being analyzed for Au, Pt,
and Pd using a standard fire assay with an ICP finish and for 27 other
elements using a four acid (near total) digestion and a combination of ICPMS
and ICPAES. ICP over limits were re-analyzed using sodium peroxide fusion,
acid dissolution followed by ICPAES. The remaining half core samples are
being stored in Minnesota.

(x)Note - Copper Equivalent is based on US metal prices of: Copper -
$1.75/lb, Nickel - $7.00/lb, Cobalt - $10.00/lb, Gold - $600/oz, Platinum -
$1,100/oz, Palladium - $350/oz and Silver - $8.50/oz, and the methodology
with metallurgical recoveries, refining costs and other charges being
considered for all metals in accordance with the Net Smelter Return Factors
contained in the January 22, 2008, NI 43-101 Scoping Study produced by Scott
Wilson RPA.

A presentation on the current and future developments of the Nokomis
Deposit will be given by Christopher Dundas, Chairman of Duluth Metals, at
8:37am EST on Thursday March 25, 2010 at the John Tumazos Very Independent
Research, LLC Metals and Mining Conference in New York. A live webcast
presentation will be available through a link on the Duluth Metals website at
www.duluthmetals.com.

David Oliver, P. Geo. and Duluth Project Manager is the Qualified Person,
in accordance with NI 43-101 of the Canadian Securities Administrators, and
is responsible for the technical content of this press release and quality
assurance of the exploration data and analytical results.

About Duluth Metals

Duluth is committed to acquiring, exploring and developing copper, nickel
and platinum group metal (PGM) deposits. Duluth's principal property is the
Nokomis Deposit located within the rapidly emerging Duluth Complex mining
camp in northeastern Minnesota. On January 14, 2010, Duluth announced the
signing of a binding heads of agreement with Antofagafota plc on a joint
venture development of the Nokomis Project. The Duluth Complex hosts one of
the world's largest undeveloped repositories of copper, nickel and PGMs,
including the world's third largest accumulation of nickel sulphides, and one
of the world's largest accumulations of polymetallic copper and platinum
group metals.

This document may contain forward-looking statements (including
"forward-looking statements" within the meaning of the US Private Securities
Litigation Reform Act of 1995) relating to Duluth's operations or to the
environment in which it operates. Such statements are based on operations,
estimates, forecasts and projections. They are not guarantees of future
performance and involve risks and uncertainties that are difficult to predict
and may be beyond Duluth's control. A number of important factors could cause
actual outcomes and results to differ materially from those expressed in
forward-looking statements, including those set forth in other public
filings. In addition, such statements relate to the date on which they are
made. Consequently, undue reliance should not be placed on such
forward-looking statements. Duluth disclaims any intention or obligation to
update or revise any forward-looking statements, whether as a result of new
information, future events or otherwise, save and except as may be required
by applicable securities laws.

Web Page: www.duluthmetals.com

For further information: Mara Strazdins, Director of Corporate
Communications, at mstrazdins@duluthmetals.com or at +1-416-369-1500; or
Henry Sandri, President and CEO, at hsandri@duluthmetals.com; Minnesota
corporate office: telephone +1-651-389-9990

For further information: Mara Strazdins, Director of Corporate Communications, at mstrazdins at duluthmetals.com or at +1-416-369-1500; or Henry Sandri, President and CEO, at hsandri at duluthmetals.com; Minnesota corporate office: telephone +1-651-389-9990