USGS and partner elevation data build the terrain, and the US Forest Service centerline draws the route.
18.5 mi · Typical grade 12 to 20%
About 3,200 ft between the route's high and low points. An estimate from USGS elevation data, computed 2026-07-10; not measured in the field.
Trail facts
Length
18.5 mi mapped
Grade
Typical grade 12 to 20% (USFS trail class TG05)
Surface
native material
USFS-managed hiker season
year-round
USFS-managed uses
Hiking, Horseback (pack and saddle)
Motorized status
Non-motorized (USFS designation)
Designation
National trail designation
National forest
Arapaho and Roosevelt National Forests
Length is the trail as the Forest Service maps it, not a trip distance. Hike out and back and you will cover it twice; check the shape of the route before you count on the figure.
This record is a snapshot of U.S. Forest Service data retrieved on 2026-07-09. It does not reflect current closures, conditions, or seasonal orders. Check with the local ranger district before you go.
Elevation
About 4,000 ft of climbing one way, measured in the harder direction.
High point
About 11,350 ft
Low point
About 8,150 ft
Estimates, derived from USGS elevation data sampled along the USFS-mapped route, computed 2026-07-10. We have not measured these figures in the field.
Sprague Lake is about 19 miles away straight-line. We hike it, verify conditions, and keep a full guide for it.
A day here means a typical grade of 12 to 20%. Tell the Trip Builder where you are headed and it assembles a day-specific kit with weather, daylight, and terrain in mind.
