Tyhee Development Corp: Gold Zone Expansion Continues at Clan Lake on Yellowknife Gold Project

TSX Venture: TDC

VANCOUVER, Aug. 30 /PRNewswire-FirstCall/ - Tyhee Development Corp. (TSX-V, TDC) (the "Company") is pleased to announce additional drill results from its wholly-owned Clan Lake Main Zone. Results include 4.1 metres grading 8.29 grams per tonne gold in CL167, 3.6 metres grading 3.37 grams of gold per tonne in CL168 and 36.3 metres grading 0.86 grams per tonne gold in CL169.

Dave Webb, President & CEO of Tyhee reports "We are pleased to be able to extend the known gold mineralization by more than 200 metres along strike beyond the existing reserves and resources in the Main Zone. The recent discovery of two parallel sub-zones 150 metres away on either side of the Main Zone have become our new priority. Exploration crews have been sampling and mapping the Spud and Bear Zones in anticipation of drilling in September."

The Bear and Spud Zones were discovered within the 7 kilometre long, 1.2 kilometre wide Clan Lake Structure which now hosts eight gold zones. Tyhee has two drill rigs at Clan Lake and one at the Ormsby Zone, all of which are on standby pending further review of the recent results.

Tyhee Development Corp. is a gold exploration and development company working in the historic Yellowknife Gold Camp, NWT, Canada. It is the largest property holder in this camp and has the largest exploration and development program underway in the region. Its principal asset, the Yellowknife Gold Project, includes the Nicholas Lake, Ormsby, Bruce, Goodwin Lake, and Clan Lake Gold Zones. All are located on mineral claims and mining leases 50 to 90 km north of Yellowknife, NWT and are expected to feed a single milling operation. (Note: only Nicholas Lake and Ormsby Zones are being included for permitting purposes).

Tyhee completes 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. As well, 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. 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.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Recent diamond drillhole results from Clan Lake Main Zone.

                                                                        Gold
                                             From       To    width    Grade
    DDH                                   (metres) (metres) (metres)    (gpt)
    CL167                                   161.9    162.5      0.6     2.23
      and                                   214.0    216.0      2.0     2.00
      and                                   257.0    258.0      1.0     8.43
      and                                   301.0    305.2      4.1     8.29
      incl                                  301.0    303.0      2.0    16.46
    CL168                                    12.0     13.5      1.5     2.03
      and                                    58.0     73.0     15.0     1.48
      incl                                   69.4     73.0      3.6     3.37
      and                                    81.8    110.6     28.8     0.74
      incl                                  104.5    110.6      6.1     1.80
      and                                   190.0    192.0      2.0     2.40
    CL169                                    80.5    119.0     38.5     0.72
      incl                                  111.0    119.0      8.0     2.16
      and                                   184.0    220.3     36.3     0.86
      incl                                  219.3    220.3      1.0    18.04

    True widths are not known but are estimated to be greater than 80% of
    the reported widths (core lengths)

This news release contains "forward-looking statements" within the meaning of applicable securities laws, including statements relating to proposed or anticipated work programs. Readers are cautioned not to place undue reliance on forward-looking statements. Actual results and developments may differ materially from those contemplated by these statements. Factors which may lead the company to not proceed with anticipated work programs include factors such as analysis of the exploration results may lead to a determination that further exploration is not warranted, insufficient funding, delays as a result of early or late onset of winter conditions, availability of personnel and equipment to conduct work programs, and other factors not within the Company's control, The factors identified above are not intended to represent a complete list of the factors that could affect the Company. Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results not to be as anticipated, estimated or intended. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements.

SOURCE Tyhee Development Corp.