Complex sentence: It was created on July 1,1908 from part of Sawtooth National Forest and is managed by the U.S. Forest Service in the U.S. Department of Agriculture as four units: the Cascade, Emmett, Lowman, and Mountain Home ranger districts.
Split into simpler sentences: It was created on July 1,1908 from part of Sawtooth National Forest and is managed by the U.S. Forest Service in the U.S. Department of Agriculture. The forest is managed as four units: the Cascade, Emmett, Lowman, and Mountain Home ranger districts.