TYLER RESOURCES INC.

TYLER RESOURCES INC.

March 21, 2005 17:53 ET

Tyler Resources Inc.: Continued Success in Copper Exploration and First High Grade Gold in Core Including 1.88m Grading 1.43 Oz/ton (44.5 G/T) Gold And 1.59 Oz/ton (49.5 G/T) Silver at Bahuerachi


NEWS RELEASE TRANSMITTED BY CCNMatthews

FOR: TYLER RESOURCES INC.

TSX VENTURE SYMBOL: TYS
OTC Bulletin Board SYMBOL: TYRRF

MARCH 21, 2005 - 17:53 ET

Tyler Resources Inc.: Continued Success in Copper
Exploration and First High Grade Gold in Core
Including 1.88m Grading 1.43 Oz/ton (44.5 G/T) Gold
And 1.59 Oz/ton (49.5 G/T) Silver at Bahuerachi

CALGARY, ALBERTA--(CCNMatthews - March 21, 2005) -

Second diamond drill rig being mobilized.

Tyler Resources Inc. (TSX VENTURE:TYS) (OTCBB:TYRRF) is pleased to
announce assay results received for drill holes #18, 19 and 20 from the
Main Zone, Bahuerachi project. As expected from surface data, holes
drilled to the north (DDH#18) show a large, low grade porphyry hosted
and porphyry related section of mineralization while sections to the
south (DDH#19 and 20) continue to identify wide high grade breccia/skarn
bodies carrying copper, gold, silver, molybdenum and locally zinc
associated with smaller porphyry bodies.

Significant intervals for drill holes BAH #18 to #20.



------------------------------------------------------------------------
Hole # From To (m) Interval Copper Gold
(m) (m) (%) (g/t)
------------------------------------------------------------------------
BAH-18 51.55 160.58 109.03 0.40 0.04
------------------------------------------------------------------------
Including 126.15 146 19.85 0.98 0.1
------------------------------------------------------------------------
BAH-18 163.85 183.1 19.25 0.20 0.01
(EOH)
------------------------------------------------------------------------
BAH-19 119.25 122 2.75 0.37 0.06
------------------------------------------------------------------------
BAH-19 127.8 128.7 0.9 0.09 0.04
------------------------------------------------------------------------
BAH-19 129.95 130.85 0.9 0.04 0.03
------------------------------------------------------------------------
BAH-19 174.54 184.05 9.51 1.5 0.14
(EOH)(b)
------------------------------------------------------------------------
BAH-20 12.45 59.83 47.38 0.34 1.79
------------------------------------------------------------------------
Including 57.95 59.83 1.88 0.38 44.7
------------------------------------------------------------------------
59.83 61.15 Lost
core
------------------------------------------------------------------------
BAH-20 103.55 114.1 10.55 1.06 0.1
------------------------------------------------------------------------
114.1 114.6 Lost
core
------------------------------------------------------------------------
BAH-20 114.6 202.6 88 0.60 0.07
------------------------------------------------------------------------
(a) CRD (carbonate replacement) style mineralization consists of
limestone hosted massive sulphide lenses.
(b) Drill hole BAH-19 was stopped in high grade mineralization due to
deteriorating core recoveries.

------------------------------------------------------------------------
Hole # Silver Zinc Mo Rock Type
(g/t) (%) (%)
------------------------------------------------------------------------
BAH-18 2.7 - 0.02 QFP/Sediments/Skarn
------------------------------------------------------------------------
Including 4.4 - 0.029 QFP/Skarn
------------------------------------------------------------------------
BAH-18 1.7 - 0.023 QFP/QFP breccia
------------------------------------------------------------------------
BAH-19 63.5 0.33 - Limestone/CRD(a)
------------------------------------------------------------------------
BAH-19 7.6 5.16 - Limestone/CRD(a)
------------------------------------------------------------------------
BAH-19 5.4 3.21 Limestone/CRD(a)
------------------------------------------------------------------------
BAH-19 20.6 0.38 - Skarn/Breccia
------------------------------------------------------------------------
BAH-20 5.9 0.032 QFP/Skarn/Breccia
------------------------------------------------------------------------
Including 49.5 - - Skarn
------------------------------------------------------------------------
BAH-20 22.13 0.76 - Skarn
------------------------------------------------------------------------
BAH-20 9.3 0.22 - Porphyry/Skarn/Sediments
------------------------------------------------------------------------
(a) CRD (carbonate replacement) style mineralization consists of
limestone hosted massive sulphide lenses.
(b) Drill hole BAH-19 was stopped in high grade mineralization due to
deteriorating core recoveries.


Results on the project to date continue to meet expectations and outline
bulk mineable potential with local zones of higher grade mineralization.
Local high grade gold results in drill hole BAH-20 confirms previous
surface sampling in the southern part of the Main Zone. The Company is
strongly encouraged with the continued exploration results which outline
both thicker skarn sections near surface (BAH-20), increasing in width
at depth (BAH-21) as well as wide sections of low grade mineralized
intrusion to the north (BAH- 18).

The mineralized system at the Main Zone, including mineralized skarns,
sediments and porphyry, has now been successfully drilled over a strike
length exceeding 700 meters to depths locally exceeding 200 meters.
Detailed surface mapping and trenching are ongoing and the Company plans
to keep stepping out to the north, south and at depth.

In order to accelerate the pace of exploration at the Main Zone, the
Company is pleased to report that it has secured a second diamond drill
rig which is being mobilized to site. It is currently expected that this
second drill rig will begin working at the Main Zone in early April.

Drill hole BAH-21 (At depth from drill hole BAH-20, shown on section 270
N) has been completed and has been sent for assay. Core drilling at the
Main Zone is continuing with drill hole BAH-22.

Results from a series of regional exploration reverse circulation drill
holes (#12 to 16), testing targets in the NW part of the property (plan
map attached with regional RC drill hole collar locations) have also
been received. Although no potentially ore grade intersections have been
found in these early test holes, anomalous intersections of interest are
noted (see map) and warrant further surface work on peripheral targets
outside of the Main Zone and Los Alisos. The Reverse Circulation rig is
currently inactive awaiting a full mechanical revision and repairs.

Please refer to the drill hole location plan map attached for the
general location of all drill holes and sections.

The Qualified Person responsible for the design and implementation of
the Field Program as well as the preparation of this news release was J.
P. Jutras, P.Geol., and President of the Company. The work program was
carried out with the participation of Dr. Shane William Ebert, Ph.D,
P.Geo and Director, Mr. Brent Gonek, B.Sc, Geology, G.I.T., and Mr. Paul
Turnbull, P.Geol, consultants to the Company.



"Jean Pierre Jutras"

Jean Pierre Jutras
President/COO/Director


Except for the historical and present factual information contained
herein, the matters set forth in this news release, including words such
as "expects", "projects", "plans", "anticipates" and similar
expressions, are forward-looking information that represents management
of Tyler's internal projections, expectations or beliefs concerning,
among other things, future operating results and various components
thereof or the economic performance of Tyler. The projections, estimates
and beliefs contained in such forward-looking statements necessarily
involve known and unknown risks and uncertainties, which may cause
Tyler's actual performance and financial results in future periods to
differ materially from any projections of future performance or results
expressed or implied by such forward-looking statements. These risks and
uncertainties include, among other things, those described in Tyler's
filings with the Canadian securities authorities. Accordingly, holders
of Tyler shares and potential investors are cautioned that events or
circumstances could cause results to differ materially from those
predicted. Tyler disclaims any responsibility to update these
forward-looking statements.

There are maps available on CCNMatthews' website at:

http://www2.ccnmatthews.com/database/fax/2000/tys1a.pdf

http://www2.ccnmatthews.com/database/fax/2000/tys2a.pdf

http://www2.ccnmatthews.com/database/fax/2000/tys3a.pdf

http://www2.ccnmatthews.com/database/fax/2000/tys4a.pdf

-30-

Contact Information

  • FOR FURTHER INFORMATION PLEASE CONTACT:
    Tyler Resources Inc.
    Jean Pierre Jutras
    (403) 269-6753
    Website: www.tylerresources.com
    The TSX Venture Exchange has neither approved nor disapproved of the
    contents of this press release.