  weyerhaeuser ( or ) is one of the world's largest private owners of timberlands. it owns or controls more than 6 million acres of timberlands, primarily in the u.s., and manages another 14 million acres under long-term licenses in canada. the company also manufactures wood and cellulose fiber products. weyerhaeuser is a real estate investment trust. ==history==   after years of successful mississippi-based lumber and mill enterprises in the midwest with frederick denkmann and other partners (1870s onward), frederick weyerhaeuser moved west to fresh timber areas, and founded weyerhaeuser timber company in 1900; 15 partners and 900,000 acres (3,600&nbsp;kmÂ²) of washington timberland were involved in the founding, and the land was purchased from james j. hill of the great northern railway. in 1929, the company
Companies_based_in_Washington_(state) Companies_established_in_1900 Companies_listed_on_the_New_York_Stock_Exchange Federal_Way,_Washington Forest_products_companies_of_the_United_States Multinational_companies Pulp_and_paper_companies_of_the_United_States Weyerhaeuser