Crazy Mountain National Forest

Crazy Mountain National Forest was a United States National Forest in Montana. It was established as the Crazy Mountain Forest Reserve by the U.S. Forest Service on August 10, 1906, with, and became a National Forest on March 4, 1907. On July 1, 1908, it was combined with part of Yellowstone National Forest to re-establish Absaroka National Forest, and its name was discontinued.
The forest was part of the Jefferson Division of Lewis and Clark National Forest. The Crazy Mountains were included in the unit, primarily in Meagher County.