SEATTLE, WASHINGTON -- June 29, 2000-- Plum Creek Timber Company, Inc. (NYSE: PCL) today announced the departure of Executive Vice President Charles P. Grenier. Mr. Grenier will be leaving the company effective August 15, 2000 to pursue personal interests.

In making the announcement, Plum Creek's President and CEO Rick R. Holley said, "Charlie's contributions to the company's growth and success during his time with Plum Creek have been tremendous."

Mr. Grenier was a key player on the management team that guided the development of Plum Creek since the company went public in 1989 through its conversion to a real estate investment trust in 1999. During Mr. Grenier's time at Plum Creek, the company made great strides in the areas of Environmental Forestry, and in modernizing the company's manufacturing facilities.

In a letter released this week, Grenier said "It has been a difficult decision as I leave an environment where I consider my colleagues professionals as well as friends, and take pride in the many accomplishments we have achieved as a team."

Mr. Grenier began his career in the forest products industry with Boise Cascade in 1976. He joined Plum Creek in 1986, became Executive Vice President in 1994, and was elected to the company's Board of Directors in 1995.

Plum Creek is one of the largest timberland owners in the nation with timberlands and mills located in the Northwestern, Southern and Northeastern regions of the United States.