Threemile Loop
USFS trail 3743
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.
8.5 mi · Typical grade 12 to 20%
About 900 ft between the route's high and low points. An estimate from US government elevation data, computed 2026-07-10; not measured in the field.
Trail facts
- Length
- 8.5 mi mapped
- Grade
- Typical grade 12 to 20%
- Surface
- snow
- Accessibility
- Not listed by the USFS as accessible
- Designation
- National trail designation
- National forest
- Fremont-Winema National Forest