Tyhee reports three of first four drillholes intersect gold-bearing shear zones at BigSky, Yellowknife NWT Canada. Confirms four kilometre long gold-bearing structure

    TSX Venture: TDC

    VANCOUVER, Feb. 4 /CNW/ - Tyhee Development Corp. (TSX Venture, TDC) (the
"Company") today announced results from the initial four diamond drillholes on
its wholly-owned BigSky Property, Yellowknife NWT. Results include 1.5 metres
(m) grading 4.823 grams per tonne (gpt) gold included in 3.0 m grading 3.209
gpt gold in B002 and 8.687 gpt over 0.7 metres included in 2.2 metres grading
3.462 gpt gold in B004.

    Table 1. Recent results from the BigSky Property.
    Diamond           From           To        Width            Gold Grade
    Drillhole      (metres)     (metres)     (metres)     (grams per tonne)
    B002              28.0         31.0          3.0                 3.209
        Incl          29.5         31.0          1.5                 4.823
        And           92.0         93.0          1.0                 0.685
    B003              37.7         38.5          0.8                 4.639
    B004              33.3         35.5          2.2                 3.462
        Incl          34.8         35.5          0.7                 8.687
        And           48.0         49.2          1.2                 0.505
    B001 did not return significant gold values

    Dave Webb, Tyhee's president and CEO said "These results demonstrate that
the shear zones are large and carry significant gold concentrations. The first
phase of our diamond drilling program on BigSky will test more than 50
specific priority targets. A second phase of diamond drilling will follow-up
the targets identified in the first phase." Webb added "We are very pleased
with these results. We have tested two shear zones 3 kilometres apart and hit
gold values in both targets. We were expecting a success rate of approximately
one intersection of a couple of grams of gold out of every five holes drilled
at this stage, with every other hit approaching economic concentrations over
widths of 1 to 1.5 metres. We have exceeded this discovery rate."
    Results from the surface sampling program in 2007 identify mineralized
shear zones extending over four kilometres in strike length and 500 metres in
width across the eastern portion of the BigSky Property. Maps with these
results and drillhole locations are available on the Tyhee website at
    Three drills are currently on the BigSky Property and one drill is on the
Ormsby Zone. The drills are currently shutdown for one week due to the extreme
    The current BigSky Property drill program is targeting a system of shear
zones exposed over a 4 km strike length and 500 m width immediately north of
the Giant Yellowknife Mine Property. The shear zone system consists of a
series of chlorite carbonate schists that transect Kam Group volcanic rocks
and associated intrusive and basement rocks. Individual shear zones are up to
20 metres wide and form subparallel networks separated by relatively
undeformed rocks.
    The adjacent Con and Giant Mines extracted over 13 million ounces of gold
from altered and mineralized chlorite carbonate schists (shear zones) that
transacted Kam Group volcanic rocks and associated intrusions.

    Table 2. Location of diamond drillholes reported in this release.
                    Easting         Northing
    HoleID          (metres)        (metres)        Azimuth         Dip
    B001             637333         6952603           090           -45
    B002             637333         6952603           090           -60
    B003             636970         6955457           090           -60
    B004             636970         6955457           090           -45

    The Company's principal focus is the development of its Yellowknife Gold
Project. The Yellowknife Gold Project consists of 6,625 hectares (15,481
acres) of mining leases located 90 km (56 miles) north of Yellowknife. The
property hosts several areas of gold mineralization, including the partially
developed Nicholas Lake Zone, the Ormsby Zone and the Bruce Lake Zone. A 1.2
million ounce measured and indicated gold resource plus a 353,000 ounce
inferred gold resource has been identified on the property as reported June
20, 2007 (News Release S.8 R.11). Additional exploration properties within the
Yellowknife Gold Belt, including the Goodwin Lake, Clan Lake, and BigSky
Properties are being explored.

    Sample Analysis and QA/QC Program

    Tyhee completed fire assays on drill core samples using 30 gram aliquots
with ICP-ES finish for gold analyses as well as a multi-element analysis on a
0.25 gm aliquot digested in a four acid leach and an ICP-MS finish, prepared
at Acme Analytical Laboratories Ltd. in Yellowknife, and finished at Acme
Analytical Laboratories Ltd in Vancouver. 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. Val Pratico, P.Geol., the designated QP within the meaning of NI 43-101,
has reviewed this release and approves of its content.


    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.

For further information:

For further information: Tyhee Development Corp., David Webb, President
and CEO, Tel: (604) 681-2877, toll free 1-866-681-2877, info@tyhee.com

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Tyhee Gold Corp.

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