June 01, 2005 09:00 ET

Tyler Resources Announces Continued Drilling Success at Bahuerachi

CALGARY, ALBERTA--(CCNMatthews - June 1, 2005) -

Including 23.25 Meters Grading 2.04% Copper, 28 g/t Silver and 0.68% Zinc in Diamond Drill Hole #24, and 34.5 Meters Grading 1.47% Copper, 0.5 g/t Gold, 28.7 g/t Silver and 1.26% Zinc in Hole #25

Tyler Resources Inc. (TSX VENTURE:TYS) is pleased to announce assay results for diamond drill holes #24 and 25, which constitute the widest mineralized drill intersections to date from the Main Zone of its Bahuerachi project, Mexico. Results continue to identify high grade breccia/skarn bodies carrying copper, gold, silver and zinc associated with smaller mineralized porphyry bodies in this part of the system. Overall grades and geology continue to be consistent to vertical depths in excess of 300 meters on section 345 North.

Significant intervals for drill holes DDH-BAH #24 and 25.

Hole # From To val Copper Gold Silver Zinc Mo Rock
(m) (m) (m) (%) (g/t) (g/t) (%) (%) Type
BAH-24 2.45 316.7 314.25
(EOH) (1) 0.47 0.04 7.7 0.46 Trace Skarn
ended in
62.4 83.4 21 0.69 0.13 20.4 4.7 Trace Skarn
127.4 150.65 23.25 2.04 0.15 28 0.68 Trace Skarn
BAH-25 6.80 160 148.15 0.49 0.12 8.8 0.35 0.01 Skarn
(2) /Marble
6.8 85 73.15 0.90 0.23 16.7 0.70 0.007 Skarn
(2) /Marble
8 43.1 34.5 1.47 0.5 28.7 1.26 Trace Skarn

(1) Excludes 3m of lost core at 83.4 meters.
(2) Excludes lost core over 5.05 meters in 4 sections between 13.75
meters and 73.65 meters
(3) Excludes 0.55 meters lost core at 14.3 meters

Results on the project to date continue to meet expectations and outline large sections of mineralization with open-pit style, bulk mineable potential with local zones of higher grade mineralization in a porphyry style setting and related skarn development. For general comparison purposes, the average grade for the Cananea porphyry-skarn complex, one of the only two porphyry mines in production in Mexico are: 0.42% copper, 0.012 g/t gold, 0.575 g/t silver, 0.01% zinc and 0.01% molybdenum (USGS World porphyry database). Copper grades at Bahuerachi continue to fall well within the envelope of grades that are considered to have economic potential in this context and the presence of numerous additional metals (Au, Ag, Zn, Mo) could add considerable value to the complex.

The Company is particularly pleased with the extensive alteration and mineralization visible within the porphyry, limestone and marble sections as well as in bedded calcareous sediments below the main limestone unit. Widespread sulphide and oxide mineralization, quartz vein stockworks and sheeted veins, recrystallization of sediments, alterations ranging from phyllic to locally potassic and abundant crosscutting anhydrite veining are all indicative of conditions highly favorable for the formation of large scale mineralized systems similar to numerous known present-day or past producing bulk tonnage mining operations.

Drill holes BAH-26, 27, 28, 29, 30 and 31 have been completed and drilling in the Main Zone is continuing with drill hole BAH-32. Drilling is currently continuing on site with 1 diamond drilling core rig due to limited personnel availability and crew rotations. The Company has tendered bids for an additional 10,000 meters of diamond drilling and 5,000 meters of RC drilling at Bahuerachi.

Please refer to the drill hole location plan map attached for the general location of all drill holes and sections. It may be found on
CCNMatthews' website at:

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 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.

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