ElevationAscent: 977' 298 m
Descent: -1,399' -426 m
High: 9,072' 2,765 m
Low: 7,722' 2,354 m
GradeAvg Grade: 2% (1°)
Max Grade: 6% (4°)
Current trail conditions
Popular runs nearby
4.8 mi 7.7 km • Loop • 353 ft Ascent 107.58 m Ascent
Singletrack Nederland, CO( 18 )
Brainard Gateway Figure-8
10.1 mi 16.2 km • Loop • 1,290 ft Ascent 393.05 m Ascent
Singletrack Nederland, CO( 7 )
Brainard Lake Snowshoe Trail
4.8 mi 7.8 km • Loop • 468 ft Ascent 142.59 m Ascent
Singletrack Nederland, CO( 13 )
Boulder Mountain Marathon
26.8 mi 43.1 km • Loop • 2,697 ft Ascent 822.17 m Ascent
Doubletrack Boulder, CO( 2 )
Hessie to Lost Lake
4.4 mi 7.1 km • Loop • 860 ft Ascent 262.21 m Ascent
Singletrack Nederland, CO( 56 )
High Lonesome Loop
15.7 mi 25.2 km • Loop • 3,162 ft Ascent 963.89 m Ascent
Singletrack Nederland, CO( 50 )
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“Easy running through fantastic scenery and interesting history.”— Kristen Arendt
Because it was once a rail line, the grades are moderate. Some parts are a bit rocky, but much is smooth and fast. Vehicles are allowed on most sections, but traffic is very low. The scenery is sometimes stunning, with views of high peaks in all directions, aspen groves, and deep conifer forests.
Although this trail is great in either direction, many people just do sections of it for a shorter run. The section from Highway 72 near Nederland to the Sugarloaf Mountain Trailhead is the easiest part, with a nice downhill at first followed by nearly level grade near the end, all on a very smooth surface. There is also some nice scenery to the south about halfway through this section. The section from Sugarloaf Mountain to Sunset is steep, rockier, and rougher than the other section, although you'll be rewarded with excellent views to the north.
From Sunset to Gold Hill Road, you'll face a long climb (over 1,000') with remarkable views and interesting history. The railroad built a hotel and park called Mt. Alto park near the top of the climb to entertain tourists long ago.
The last section from Gold Hill Road to Lefthand Canyon winds through forests and eventually becomes singletrack. It's basically flat, which is remarkable given the mountainous surroundings.
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Need to Know, Flora & Fauna
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Land Manager: USFS - Arapaho & Roosevelt National Forests Office