TYLER RESOURCES INC.
TSX VENTURE : TYS

TYLER RESOURCES INC.

June 23, 2005 09:00 ET

Tyler Resources Announces Drilling Success with First Lateral Stepouts at Bahuerachi and Thickening of Higher Grade Zones Both Laterally and at Depth

CALGARY, ALBERTA--(CCNMatthews - June 23, 2005) - Tyler Resources Inc. (TSX VENTURE:TYS) is very pleased to announce assay results for diamond drill holes #28 and 31, which continue to identify near surface mineralization at grades outlining bulk tonnage potential on the Main Zone of its Bahuerachi project, Mexico. Drill holes #28 and 31 were the first holes drilled as lateral stepouts with the objective of outlining larger widths along the 900 meters of strike length of the system tested to date.

Drilling on section 560 N has now returned positive results across widths of roughly 200 meters and vertical depths varying between 110 to 225 meters. Results are presented on the table below and on the section attached where they have been compiled with previously released results for that section.



Significant intervals for drill holes DDH-BAH #28 and 31.

------------------------------------------------------------------------
Hole # From To Interval Copper Gold Silver Zinc Mo Rock
(m) (m) (m) (%) (g/t) (g/t) (%) (%) Type
------------------------------------------------------------------------
BAH-28 32.6 193.75 161.15(1) 0.5 0.04 7.8 0.24 .009
Sediments
/Skarn
/Porphyry
------------------------------------------------------------------------
including
168 193.75 25.75(2) 1.35 0.13 33.8 1.00 0.024 Breccia
/Skarn
------------------------------------------------------------------------
BAH-31 32 225.4 193.4(3) 0.63 0.05 9.4 0.40 Trace
Sediments
/Skarn
/Porphyry
------------------------------------------------------------------------
including
166.25 225.4 59.15(4) 1.33 0.13 21.8 1.09 0.01 Breccia
/Skarn
------------------------------------------------------------------------
(1) Excludes 9.25m of lost core over interval.
(2) Excludes 3.15m of lost core over interval.
(3) Excludes 5.7 meters lost core over interval
(4) Excludes 5.7 meters lost core over interval.


Results continue to identify high grade breccia/skarn bodies carrying copper, gold, silver and zinc associated with mineralized sediment and porphyry bodies. Both drill holes #28 and 31 were abandoned before their final target depth due to difficult ground conditions. It is anticipated that further lateral stepouts and deeper drilling will be undertaken once a more powerful drill rig has been mobilized on site.

The Company is particularly pleased with the confirmed width of mineralization on section 560N. Surface geology indicates that additional drilling could expand the mineralized section by an additional 100-150 meters or more to the west. Drill confirmation of the increase in thicknesses and locally in grades of the higher grade skarn/breccia at depth is also extremely encouraging with regards to continued exploration on this section as well as other sections where lateral stepouts have yet to be undertaken.

Drill holes BAH-32, 33 and 34 have been completed and drilling is currently ongoing with drill hole BAH-35 which is one of four drill holes doing an initial test of mineralization previously identified at the Mina Mexicana prospect, located 600 m southeast of the Main Zone. Once these holes are completed, drilling is planned to continue in the Main Zone through the summer, going north from the last section drilled (section 2NE). The Company is currently finalizing contracts and arrangements to bring in an additional drill rig with superior depth capacity ratings, which is currently expected to mobilize on site and begin working in August.

Please refer to the drill hole location plan map attached for the general location of all drill holes and sections:
http://www2.ccnmatthews.com/database/fax/2000/622tys.pdf

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, P.Geol.
President and 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.

The TSX Venture Exchange has neither approved nor disapproved of the contents of this press release.

Contact Information

  • Tyler Resources Inc.
    Jean Pierre Jutras, P.Geol.
    President and Director
    (403) 269-6753
    (403) 266-2606 (FAX)
    Website: www.tylerresources.com