Twin Sisters
USFS trail 109
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.
6.6 mi · Typical grade 12 to 20%
About 1,750 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
- 6.6 mi mapped
- Grade
- Typical grade 12 to 20%
- Surface
- native material
- Motorized status
- Motorized use designated by the USFS
- Accessibility
- Not listed by the USFS as accessible
- Designation
- National trail designation