Lower South Fork
USFS trail 1155
The route in 3D
Fly this trail over real terrain
USGS and partner elevation data build the terrain, and the US Forest Service centerline draws the route.
2.7 mi · Typical grade 10 to 12%
About 150 ft between the route's high and low points. An estimate from US government elevation data, computed 2026-07-11; not measured in the field.
Trail facts
- Length
- 2.7 mi mapped
- Grade
- Typical grade 10 to 12%
- Surface
- native material
- Motorized status
- Motorized use designated by the USFS
- Designation
- National trail designation
- National forest
- Flathead National Forest