Williams Creek Announces the Acquisition of 10,000,000 shares in the Tyhee Development Corporation

   Williams Creek Explorations Limited (TSX VENTURE: WCX) ("Williams Creek", "WCX", or "the Company") is pleased to announce that it has subscribed to 10,000,000 newly issued common shares in the Tyhee Development Corporation ("Tyhee"), a publicly-traded company (TSX VENTURE: TDC) engaged in the exploration and development of mineral properties. Tyhee's principal project is the Yellowknife Project in the Northwest Territories, Canada. The total cost of the shares is $1,000,000 (CAD).

"I am especially encouraged by the size, quality and extent of the measured, indicated and inferred gold resources of Tyhee's Yellowknife project," said Michael Sonnenreich, Chairman and CEO of Williams Creek. "Tyhee has discovered substantial amounts of gold which can be economically mined in an accessible and geopolitically stable location (Tyhee NR, July 22, 2010)."

Tyhee reports 1.95 million ounces of gold in Measured and Indicated Resource categories, which are in part inclusive of 811,200 ounces of gold in the Proven and Probable Reserve categories. There are also 269,000 ounces of inferred gold (Tyhee NR, July 22, 2010). The resources occur in five gold zones which are all open to depth, two of which are also open along strike. Two new gold zones have been discovered this year (Tyhee NR, August 11, 2010). The Yellowknife gold camp has produced over 14.5 million ounces of gold in the past.

"Williams Creek's rationale in helping to capitalize Tyhee is to facilitate Tyhee's continuing exploration and development of its Yellowknife project," added Sonnenreich. "As well, we intend for the capital to be used for Tyhee to proceed with its ongoing demonstration of the economic viability of that project."

The shares are accompanied by an additional 5,000,000 warrants entitling Williams Creek to purchase a further 5,000,0000 newly issued shares in the Tyhee Development Corporation at a price of $0.125 CAD per share within the next 24 months.

"As I have often said, Williams Creek has a three part strategy: a) to explore its existing holdings, b) to participate in equity and joint venture agreements, and c) to engage in royalty and finance agreements," said Sonnenreich. "The purchase of this equity interest, as well as the accompanying warrants, is a good example of the second part of Williams Creek's mandate, namely participation in equity and joint venture agreements."

Williams Creek is investing side-by-side with Interinvest, an asset management company with offices in Boston and Montreal, which acts as the non-discretionary investment advisor to WCX. Interinvest is purchasing an additional 20,000,000 units offered in the same private placement. Mr. Sonnenreich and Dr. Hans P. Black, chairman of Interinvest, are participating directly in the Interinvest portion of the private placement as individuals.

"Tyhee is very pleased to have Williams Creek as a shareholder," said Dave Webb, CEO of Tyhee. "We look forward to a constructive relationship."

About WCX:

Williams Creek Explorations Ltd. is a Canadian company with the primary purpose of participating broadly in the natural resource sector, with an emphasis on the gold subsector, through exploration, joint ventures or other equity investments.

The Company owns twenty-eight crown granted mineral claims in the Cariboo Mining Division and three crown granted mineral claims in the Kamloops Mining Division. The Company also has a net 30% interest in the ATW diamond property in the MacKenzie Mining District of the Northwest Territories.

This news release may contain forward-looking statements including management's assessments of future plans and operations, and expectations of future production. These statements are based on current expectations that involve a number of risks and uncertainties, which could cause actual results to differ materially from those anticipated. These risks include, but are not limited to, the risks associated with the mining and exploration industry (e.g. operational risks in development, exploration and production; delays or changes in plans with respect to exploration or development projects or capital expenditures; the uncertainty of reserve estimates; the uncertainty of estimates and projections relating to production and the uncertainty of the availability of capital). The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements.

The TSX Venture Exchange has not reviewed nor accepted responsibility for the adequacy or accuracy of this news release which has been prepared by management.

Contacts: Williams Creek Explorations Limited Michael Sonnenreich 514.393.3232 Williams Creek Explorations Limited Dov Zigler 514.393.3232 www.williamscreek.ca