Potlatch Corporation (NASDAQ: PCH) will release third quarter 2011 earnings on Monday, October 24, 2011, before the market opens. A live conference call and webcast will follow hosted by Michael J. Covey, chairman, president and chief executive officer, and Eric J. Cremers, vice president, finance and chief financial officer at 9 a.m. Pacific Time (noon Eastern Time). Investors may access the webcast at www.potlatchcorp.com by clicking on the Investor Resources link or by conference call at 1-866-393-8403 for U.S./Canada and 1-706-679-7929 for international callers. Participants will be asked to provide conference I.D. number 14080455. A telephone replay of the conference call will be available until October 31, 2011 by calling 1-855-859-2056 for U.S./Canada or 1-404-537-3406 for international callers. Callers must enter conference I.D. number 14080455 to access the replay. ABOUT POTLATCH Potlatch is a Real Estate Investment Trust (REIT) with approximately 1.45 million acres of timberland in Arkansas, Idaho and Minnesota. Potlatch, a verified forest practices leader, is committed to providing superior returns to stockholders through long-term stewardship of its forest resources. The company also conducts a land sales and development business and operates wood products manufacturing facilities through its taxable REIT subsidiary. More information about Potlatch can be found on the company’s website at www.potlatchcorp.com.