USFS National Forest System Trails · Updated June 2026
Where Can You Mountain Bike in Colorado?
Across 7 national forests in Colorado, USFS data maps 4,227 mi of bike-designated trail on 1,368 segments, led by Grand Mesa, Uncompahgre and Gunnison National Forests with 1,723 mi. These are the National Forest System trails where mountain bikes are officially designated.
4,227 mi
Bike-designated
1,368 segments
15,805 mi
Total NFS trail
7
National forests
4,135 mi
Class 1 e-bike
989 segments
Colorado national forests by bike-designated trail
| National forest | Bike miles | Class 1 e-bike segments |
|---|---|---|
| Grand Mesa, Uncompahgre and Gunnison National Forests | 1,723 mi | 319 |
| White River National Forest | 915 mi | 100 |
| Arapaho and Roosevelt National Forests | 620 mi | 53 |
| Pike and San Isabel National Forests | 618 mi | 182 |
| San Juan National Forest | 218 mi | 131 |
| Medicine Bow-Routt National Forest | 134 mi | 145 |
| Rio Grande National Forest | 0 mi | 59 |
Frequently asked questions
- How many miles of national-forest mountain bike trail are in Colorado?
- About 4,227 mi of bike-designated trail across 7 national forests, from USFS travel-management data.
- Which national forest has the most mountain biking in Colorado?
- Grand Mesa, Uncompahgre and Gunnison National Forests, with about 1,723 mi of bike-designated trail.