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Tyhee intersects broad zones of gold mineralization, including 21.5 m grading 10.39 gpt gold and 78.8 m grading 1.94 gpt gold at Clan Lake, Yellowknife, NWT, Canada

    TSX Venture: TDC      VANCOUVER, May 13 /CNW/ - Tyhee Development Corp. (TSX Venture, TDC) (the "Company") today announced preliminary results from the initial seven drillholes on its wholly-owned Clan Lake Property. Drilling tested a 100 metre long portion of a gold bearing zone. Another 12 drillholes have assays pending.     "We are very pleased to have confirmed a gold-bearing zone over such a broad area that remains open on strike." said Dr. D.R. Webb, President & CEO of Tyhee. "Significant intersections include CL100, which returned 78.8 metres (m) grading 1.94 grams per tonne (gpt) gold including 33.0 metres grading 4.29 gpt gold. CL103 intersected 21.5 metres grading 10.39 gpt gold, and CL104 intersected 11.9 metres grading 15.58 gpt gold and 32.7 metres grading 1.15 gpt gold further down hole."      <<        Results from current diamond drill program on Clan Lake Property     DDH           From            To            Thickness         Gold Grade                 (metres)       (metres)          (metres)            (gpt)      CL100           2.2           81.0              78.8                1.94       incl         24.5           57.5              33.0                4.29       incl         24.5           38.5              14.0     (note 1)   9.82     CL101           3.0           33.0              30.0                1.13       incl         14.5           26.0              11.5                2.30       AND          68.6          130.0              61.4                3.25       incl         69.6           77.0               7.4                3.10       incl         81.5           83.0               1.5                3.26       incl         89.0           90.0               1.0     (note 1) 142.04       incl         98.0          100.2               2.2                3.01       incl        119.6          126.1               6.5                1.75     CL102          48.0           91.0              43.0                0.98       incl         48.0           50.0               2.0                8.01       incl         58.0           59.8               1.8                3.19       incl         82.5           91.0               8.5                1.26     CL103          11.5           33.0              21.5               10.39       incl         11.5           12.5               1.0              168.85       incl         18.5           27.3               8.8                5.25       AND          63.3           78.5              15.3                2.33       incl         76.0           78.5               2.5                6.66     CL104          33.5           45.4              11.9               15.58       incl         33.5           42.1               8.7               21.38       incl         38.8           42.1               3.3               30.41       AND          80.4          113.0              32.7                1.15       incl         80.4           83.5               3.2                4.26       incl        110.9          113.0               2.1                4.36       AND         144.0          152.5               8.5                0.62     CL106          44.0           52.0               8.0                1.35       AND          97.4          102.5               5.1                1.56       incl         99.8          102.5               2.8                2.06       incl        178.5          179.5               1.0                1.61     CL109          76.0           82.0               6.0                0.99                   218.0          219.0               1.0                2.61      True width cannot be estimated. Drillholes are perpendicular to the     gold-bearing zone, but a suite of quartz veins that commonly contains     visible gold was intersected at shallower angles within the broader gold     zone.      Note 1:  Significant visible gold was noted in a 4 cm segment of quartz              which was omitted from assay. Assays are uncut.     >>      "The Clan Lake Property is 32 km south of Tyhee's Ormsby Zone (19 km south of the Goodwin Lake Zone) and 27 km north of the Bluefish hydroelectric complex." The principal gold-bearing zone on the property has been traced on surface for approximately 300 m (open). Drilling has intersected mineralization to a depth of 150 m below surface, (open). The broad zones of nearly 80 metres in CL100, and in aggregate 91.4 metres in CL101 are very encouraging and have positive implications towards the size of the deposit." said Webb.     "Two of the narrow high-grade zones are exceptionally rich and have been omitted from the sample stream. Although very high-grade, the volume of these samples would not materially affect our resource estimations, and would normally be cut to 100 gpt or less when resource estimates are completed. As such, they were omitted from being assayed. Photos of the two samples can be found on the Tyhee website (http://www.tyhee.com/photographs/photos.php).     The generally north to northwest trending mineralized zone is predominantly a light grey to tan coloured fine-grained foliated intermediate tuff. Alteration consists of pervasive and patchy silicification, sericitization and locally carbonatization with patchy pyrrhotite, and fracture-related pyrite and arsenopyrite. Numerous quartz veins, generally less than 20 cm width transect these rocks.     Diamond drilling is continuing with two drills currently active on the Ormsby Zone during break-up. Drilling will commence after break-up on BigSky, Clan Lake, Goodwin Lake and at Nicholas Lake as the three drills on our properties become available.      To view a map of the Clan Lake Drill Program please visit:     http://files.newswire.ca/550/0805_Clana_Map.pdf      About Tyhee Development Corp.      Tyhee Development Corp. is a gold exploration and development company currently focused on the historic Yellowknife Gold Camp, NWT, Canada. It is the largest property holder in the historic camp, and has the largest exploration and development program underway in the region. Its principal asset is the advanced-stage Yellowknife Gold Project, which consists of 6,625 hectares (15,481 acres) of mining leases located 90 km (56 miles) north of Yellowknife, NWT, Canada. Three additional gold properties have been acquired within the Yellowknife Gold Belt and further acquisitions are being considered.     Tyhee completed fire assays on drill core samples using 30 gram aliquots with ICP-ES finish for gold analyses, prepared at Acme Analytical Laboratories Ltd. in Yellowknife, and finished at Acme Analytical Laboratories Ltd in Vancouver. A semi-quantitative multi-element analysis is run on 0.5 gm aliquot samples leached in a hot aqua regia solution and measured using ICP-ES techniques. Samples grading greater than 10 gpt gold are fire assayed on 30 gram samples and measured using ICP-ES techniques. Tyhee conducts a rigorous QA/QC program of inserting blanks and duplicates in the field and standards in the laboratory. The laboratory also conducted their own independent QA/QC program including inserting their own standards and rerunning samples from pulped material and reject material. These results were provided to Tyhee. All standards, duplicates, blanks and check assays returned acceptable results. Mr. V. Pratico, P.Geol., the designated QP within the meaning of NI 43-101, has reviewed this release and approves of its content.      NO REGULATORY AUTHORITY HAS APPROVED OR DISAPPROVED THE CONTENT OF THIS     RELEASE. THE TSX VENTURE EXCHANGE DOES NOT ACCEPT RESPONSIBILITY FOR THE     ADEQUACY OR ACCURACY OF THIS RELEASE.      Tyhee's shares trade on the TSX Venture Exchange under the symbol "TDC". For additional information, please visit the Company's website, www.tyhee.com.