The Gunnison National Forest is a U.S. National Forest covering 1,672,136 acres (2,612.71 sq mi, or 6,766.89 km2) [1] in Mesa, Gunnison, Hinsdale and Saguache Counties in Western part of the U.S. state of Colorado.

In descending order of land area within the forest they are Gunnison, Saguache, Hinsdale, Delta, and Montrose counties.

It shares the Maroon Bells-Snowmass Wilderness with the White River and San Isabel National Forests, and the Collegiate Peaks Wilderness Area with the San Isabel National Forest.

Today it is administered jointly with the Grand Mesa and Uncompahgre National Forests from offices in Delta.

There are local ranger district offices located in Gunnison and Paonia.