The best MTB trails in Custer Gallatin National Forest
4.5
(2)
129
riders
22
rides
Last updated: November 9, 2025
43
riders
1. Bangtail Divide — IMBA Epic Route
49.8km
04:54
1,270m
1,280m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
6
riders
2. Sheep Lake Trail — Madison Range
18.7km
02:20
770m
770m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
Sign up for free
2
riders
3. Targhee Creek Trail to FS 1790 Trail loop — Caribou-Targhee National Forest
32.5km
03:37
1,000m
1,000m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
2
riders
4. Garnet Mountain loop — Custer Gallatin National Forest
18.1km
02:11
680m
670m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
1
riders
5. Mt. Blackmore Summit from Hyalite Reservoir — Custer Gallatin National Forest
17.8km
02:38
1,070m
1,070m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Other adventures in Custer Gallatin National Forest
Most popular routes in Custer Gallatin National Forest
Most popular attractions in Custer Gallatin National Forest
Get inspired with the komoot mobile app
Explore more
Browse the best MTB trails in other regions.
Get ready to conquer new peaks
Sign up for Free