Mica Basin

Managing agency

Arapaho-Roosevelt NF — Boulder RD

Mica Basin is a 5.4-mile out-and-back trail located in Colorado near the Boulder Ranger District of Arapaho-Roosevelt National Forest. The trail provides access to the scenic Mica Basin area within this expansive national forest system. As an out-and-back route, hikers will travel to a destination point before retracing their path, making the total round-trip distance 10.8 miles of hiking. The Arapaho-Roosevelt National Forest manages this trail, ensuring it is maintained as part of the region's outdoor recreation network. The Boulder Ranger District office can provide additional information about current trail conditions, seasonal closures, and any necessary permits. Hikers should prepare accordingly for the full distance and bring adequate water and supplies. Weather conditions in the Colorado high country can change rapidly, so appropriate gear for variable conditions is recommended. Check with the managing agency before your visit for the most current trail status and any updates to trailhead access.