0001338749-06-000064 3 2 20060515 20060515 20060515 POTLATCH CORP 0001338749 6798 820156045 DE 1231 601 WEST RIVERSIDE AVENUE SUITE 1100 SPOKANE WA 99201 (509) 835-1500 601 WEST RIVERSIDE AVENUE SUITE 1100 SPOKANE WA 99201 Potlatch Holdings, Inc. 20050914 DeReu William R 0001359857 3 34 001-32729 06843487 509-835-1500 601 WEST RIVERSIDE AVE. SPOKANE WA 99201 3 1 edgar.xml PRIMARY DOCUMENT EX-24 2 powerofattorney-apr2006.htm POWER OF ATTORNEY