Mountain Biking Hartman Rocks Gunnison CO | Behind the Rocks / Alonzos

Hartman Rocks Recreation Area offers over 40 miles of single track for beginner to expert riders. The trails wander through rolling hills of sagebrush interspersed with granite rock formations and Cottonwood groves. Behind the Rocks and Alonzos are fun blue rated trails with a mix of rocky and flow sections.