Long Pine National Forest was established as the Long Pine Forest Reserve in Montana on September 24, 1906 with 111,445 acres (451.00 km2). It became a National Forest on March 4, 1907. On July 1, 1908 it was absorbed by Sioux National Forest and the name was discontinued. [1]
The forest today comprises the Long Pines unit of the Sioux Ranger District of Custer National Forest, in Carter County, Montana with 320 acres in Harding County, South Dakota. [2]
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