USFS National Forest System Trails · Updated October 2026
Where Can You Mountain Bike in Idaho?
Across 7 national forests in Idaho, USFS data maps 5,602 mi of bike-designated trail on 1,686 segments, led by Caribou-Targhee National Forest with 2,696 mi. These are the National Forest System trails where mountain bikes are officially designated.
- Bike-designated
- 5,602 mi1,686 segments
- Total NFS trail
- 23,587 mi
- National forests
- 7
- Class 1 e-bike
- 7,528 mi2,080 segments
Idaho national forests by bike-designated trail
| National forest | Bike miles | Class 1 e-bike segments |
|---|---|---|
| Caribou-Targhee National Forest | 2,696 mi | 527 |
| Boise National Forest | 1,553 mi | 344 |
| Sawtooth National Forest | 782 mi | 318 |
| Salmon-Challis National Forest | 298 mi | 317 |
| Payette National Forest | 169 mi | 148 |
| Idaho Panhandle National Forests | 105 mi | 426 |
| Nez Perce-Clearwater National Forest | 0 mi | 0 |
Frequently asked questions
- How many miles of national-forest mountain bike trail are in Idaho?
- About 5,602 mi of bike-designated trail across 7 national forests, from USFS travel-management data.
- Which national forest has the most mountain biking in Idaho?
- Caribou-Targhee National Forest, with about 2,696 mi of bike-designated trail.