The Hartman Rocks Big Loop

About

The Hartman Rocks Big Loop is a 30-mile mountain biking route located just southwest of Gunnison, Colorado. Classified as difficult, the trail typically takes about 10 hours to complete and sits at an elevation of 7,703 feet. The route offers a mix of technical slickrock features and flowing singletrack within the Hartman Rocks Recreation Area. Riders encounter varied terrain including rocky and sandy sections, with some steep climbs on trails like Top of the World and technical descents such as Tailpipe. The trail system supports two-way traffic on most routes, except for a few dedicated downhill sections. Access is available from April through October, though roads south of Powerline Road close for sage-grouse conservation between March 15 and May 15. Parking is available at the trailhead, and the area is pet-friendly. There are no fees for day use or camping, with 50 designated dispersed campsites available on a first-come, first-served basis. Potable water and developed facilities are not provided at the campsites.