SEATTLE--(BUSINESS WIRE)--July 31, 2006--Plum Creek TimberCompany, Inc. (NYSE:PCL) today announced that Chief Financial OfficerWilliam R. Brown has resigned from the company, effective July 31,2006, and was named president of Green Diamond Resource Company. PlumCreek is considering candidates to replace Mr. Brown as identified inthe company's leadership succession plan.

"Bill has been a strong contributor to Plum Creek's leadershipteam," said Rick Holley, president and chief executive officer. "Wethank him for his many years of service to Plum Creek and wish him allthe best in his new role at Green Diamond."

Plum Creek is the largest and most geographically diverse privatelandowner in the nation with more than 8 million acres of timberlandsin major timber producing regions of the United States and 10 woodproducts manufacturing facilities in the Northwest.

CONTACT: Plum Creek Timber Company, Inc., Seattle
Investors: John Hobbs, 800-858-5347
Media: Kathy Budinick, 206-467-3620

SOURCE: Plum Creek Timber Company, Inc.