USFS National Forest System Trails · Montana · Updated June 2026
Beaverhead-Deerlodge National Forest Mountain Bike Trails
Beaverhead-Deerlodge National Forest carries 3,216 mi of mapped National Forest System trail, of which 48.9 mi across 12 segments is designated for mountain bikes, typically open Year-round. Class 1 e-bikes are designated on 2 segments (1.1 mi).
48.9 mi
Bike-designated
12 segments
3,216 mi
Total NFS trail
746 segments
1.1 mi
Class 1 e-bike
2 segments
0
ADA-accessible
trail segments
Trail surface
- Native Material27
USFS trail class (1 = primitive · 5 = developed)
- Class N719
- Class 225
- Class 41
- Class 31
2% of this forest's mapped trail is bike-designated. Note: USFS records trail grade (steepness), not technical MTB difficulty — we surface grade where present but do not infer a black/blue/green rating from it.
Largest bike-designated trails
| Trail | Miles | Surface | Trail class | Bike season |
|---|---|---|---|---|
| Continental Divide Nst | 41.36 | Native Material | 2 | Year-round |
| Continental Divide Nst | 2.21 | Native Material | 2 | Year-round |
| Continental Divide | 1.6 | Native Material | 2 | Year-round |
| Inspiration Divide | 1.04 | Native Material | 4 | Year-round |
| Continental Divide Nst | 1.01 | Native Material | 2 | Year-round |
| Continental Divide Nst | 0.52 | Native Material | 2 | Year-round |
E-bikes in Beaverhead-Deerlodge National Forest
Class 1 on 2 segments · Class 2 on 2 · Class 3 on 2. See full e-bike rules for Beaverhead-Deerlodge National Forest →
Frequently asked questions
- How many miles of mountain bike trail are in Beaverhead-Deerlodge National Forest?
- Beaverhead-Deerlodge National Forest has about 48.9 mi of bike-designated trail across 12 segments, out of 3,216 mi of total National Forest System trail.
- What is the riding season in Beaverhead-Deerlodge National Forest?
- Most bike-designated trails in Beaverhead-Deerlodge National Forest carry a Year-round season in USFS data; higher-elevation trails clear later.
- Are e-bikes allowed in Beaverhead-Deerlodge National Forest?
- Only where designated. Class 1 e-bikes are recorded on 2 segments. See the e-bike rules page for the class-by-class breakdown.