Exhibit (23)
Consent of Independent Registered Public Accounting Firm
The Board of Directors and Stockholders
Potlatch Corporation:
We consent to the incorporation by reference in the registration statements (Nos. 333-17145, 333-42808, 33-54515, 333-28079, 333-74956, 333-12017, 333-42806, 333-130507, and 33-30836) on Form S-8 of Potlatch Corporation of our reports dated February 20, 2007, with respect to the consolidated balance sheets of Potlatch Corporation and consolidated subsidiaries as of December 31, 2006 and 2005, and the related consolidated statements of operations and comprehensive income, cash flows and stockholders’ equity for each of the years in the three-year period ended December 31, 2006, and the related financial statement schedule, management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2006 and the effectiveness of internal control over financial reporting as of December 31, 2006, which reports appear in the December 31, 2006 annual report on Form 10-K of Potlatch Corporation. Our reports refer to the adoption, effective December 31, 2006, of Statement of Financial Accounting Standards No. 158,Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans – an amendment of FASB Statements No. 87, 88, 106, and 132(R), and the adoption, effective January 1, 2006, of Statement of Financial Accounting Standards No. 123 (revised 2004),Share-Based Payment.
/s/ KPMG LLP
Seattle, Washington
February 20, 2007