USFS National Forest System Trails · Montana · Updated June 2026
Can You Mountain Bike in Helena-Lewis and Clark National Forest, Montana?
Yes — Helena-Lewis and Clark National Forest in Montana has 2,202 mi of bike-designated National Forest System trail across 497 segments, typically open Year-round, according to official USFS travel-management data.
2,202 mi
Bike-designated
497 segments
3,588 mi
Total NFS trail
1,626 segments
Year-round
Bike season
USFS managed-use
11
ADA-accessible
trail segments
61% of this forest's mapped trail is bike-designated. USFS records trail grade (steepness), not technical MTB difficulty — we surface grade where present but do not infer a black/blue/green rating.
Bike-designated trails in Helena-Lewis and Clark National Forest
| Trail | Miles | Surface | Bike season |
|---|---|---|---|
| Continental Divide | 69.09 | Native Material | Year-round |
| Continental Divide | 51.76 | Native Material | Year-round |
| Two Med-Heart Butte | 29.79 | Native Material | Year-round |
| Poe Park | 24.88 | Native Material | Year-round |
| Dry Pole Creek | 22.28 | Native Material | Year-round |
| North Fork Teton | 20.51 | Native Material | Year-round |
| Lewis And Clark Pass | 20.44 | Native Material | Year-round |
| Tenderfoot | 20.28 | Native Material | — |
| Landers Fork Trail | 19.27 | Native Material | Year-round |
| Lange Creek | 19.1 | Native Material | Year-round |
| Crow Creek | 18.16 | Native Material | Year-round |
| Mortimer Gulch | 17.96 | Native Material | Year-round |
| Moose Creek | 17.16 | Native Material | Year-round |
| Edith Lake | 16.76 | Native Material | Year-round |
| Route Creek Pass | 16.2 | Native Material | Year-round |
Frequently asked questions
- How many miles of mountain bike trail are in Helena-Lewis and Clark National Forest?
- Helena-Lewis and Clark National Forest has about 2,202 mi of bike-designated trail across 497 segments, out of 3,588 mi of total National Forest System trail.
- Are e-bikes allowed in Helena-Lewis and Clark National Forest?
- Only where designated — on Forest Service land e-bikes are motor vehicles. Class 1 e-bikes are recorded on 323 segments here.
- What is the mountain-bike season in Helena-Lewis and Clark National Forest (Montana)?
- Most bike-designated trails carry a Year-round season in USFS data; higher-elevation trails open later.