Hartman Rocks Recreation Area includes over 14,000 acres of public land managed by the Bureau of Land Management and 160 acres (The Base Area) owned and managed by The City of Gunnison, and Gunnison County. Hartman Rocks has 45 miles of single track trail, 45 miles of roads, 50 designated dispersed campsites, and countless climbing crags. Single track trails are perfect for mountain biking, dirt biking, hiking, and trail running. Roads are often traveled by 4x4 trucks, ROVs and ATVs. In the winter months 16 miles of roads are groomed as cross country ski trails for classic and skate skiing; and some single track trails are groomed as winter single track for fat biking. For more information, please contact the Gunnison Field Office.