Potlatch Corporation

Spokane, Washington, USA 20 September 2006 --(BUSINESS WIRE)-- Potlatch Corporation (NYSE:PCH), a real estate investment trust (REIT), has scheduled its third quarter conference call for 31 October 2006, at 8:00 a.m. Pacific time (11 a.m. Eastern).

Third quarter results will be released via Business Wire before the market opens on that day. Conference call participants will include Michael J. Covey, Potlatch president and chief executive officer, and Gerald L. Zuehlke, chief financial officer.

Investors can access the conference in the United States and Canada by calling 866.314.9013; or elsewhereby dialing 617.213.8053. Participants will be asked to provide passcode number 38999387.

For those unable to participate in the call, an archived recording will be available through the Potlatch Corporation Web site at www.potlatchcorp.com for approximately one year following the conference call. A telephone replay of the conference call will be available until 07 November 2006, by calling 888.286.8010 (U.S. and Canada) or 617.801.6888 (international) and entering passcode number 96459995.

Potlatch is a REIT with 1.5 million acres of forestland in Arkansas, Idaho, Minnesota, and Oregon. Through a taxable REIT subsidiary, the company also operates 13 manufacturing facilities that produce lumber and panel products and bleached pulp products, including paperboard and tissue products.