Stewards of change With roots reaching back to 1876, the U.S. Forest Service administers 155 national forests and 20 national grasslands as an agency of the U.S. Department of Agriculture. Among other duties, field personnel construct and maintain trails, patrol wilderness areas, protect culturally signifi - cant heritage sites, and study the ecosystems of the national forests and other federal, state, and private lands. Supporting 33,000

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