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Michael R. Sonnenreich, Chairman and CEO of Williams Creek, Joins Tyhee Development Corporation Board of Directors

VANCOUVER, BRITISH COLUMBIA--(Marketwire - 11/04/10) - Williams Creek Explorations Limited (TSX-V:WCX - News) ("Williams Creek," "WCX," or "the Company") is pleased to announce that Michael Sonnenreich, Chairman and CEO of Williams Creek, has joined the board of the Tyhee Development Corporation ("Tyhee"), a publicly-traded company (TSX-V:TDC - News) engaged in the exploration and development of mineral properties in the Northwest Territories near Yellowknife. Mr. Sonnenreich's appointment to the board of Tyhee was made in conjunction with Williams Creek's acquisition of 10,000,000 newly issued shares in Tyhee (Williams Creek NR, November 1, 2010)."I am enthusiastic about joining the Tyhee board," said Mr. Sonnenreich. "Williams Creek has made a meaningful investment in Tyhee, and I intend to work with Tyhee's management and board to advance our mutual interest in the success of Tyhee."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.Denis Taschuk, Tyhee's Chairman of the Board reports, "We are pleased to have a man of Michael's caliber on the team. His experience in law, finance and in corporate governance will assist the board and management of Tyhee to move its wholly-owned gold project forward towards production."About WCX:Visit http://www.WilliamsCreek.ca to learn more about Williams Creek Explorations Ltd.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.