South Sourdough (#835)
ElevationAscent: 1,162' 354 m
Descent: -303' -92 m
High: 10,282' 3,134 m
Low: 9,215' 2,809 m
GradeAvg Grade: 5% (3°)
Max Grade: 20% (11°)
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 Lake Snowshoe Trail
4.8 mi 7.8 km • Loop • 468 ft Ascent 142.59 m Ascent
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Long Lake Loop
3.6 mi 5.8 km • Loop • 294 ft Ascent 89.63 m Ascent
Singletrack Nederland, CO( 17 )
7.7 mi 12.4 km • Out and Back • 2,662 ft Ascent 811.3 m Ascent
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South Arapaho Peak
8.6 mi 13.8 km • Out and Back • 3,111 ft Ascent 948.19 m Ascent
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Junco Lake Loop
22.2 mi 35.8 km • Point to Point • 4,972 ft Ascent 1515.48 m Ascent
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“A rugged portion of sourdough Trail, south of Brainard Lake.”— Benjamin Pontecorvo
This singletrack trail ascends to the Brainard Lake road, which splits the southern and northern halves of the Sourdough Trail. The southern half of Sourdough is less rugged than the northern half, and travels through splendid forest that rarely opens up enough for a vista.
This first two miles are a constant ascent on fairly loose rocks and will keep you on your toes. The grade isn't too steep, but there's not much of a break until you get to a pretty bridge over a stream crossing at 2.5 miles.
The trail becomes smoother at this point, but keeps climbing for a while with occasional views east through the trees. After about 3.5 miles, the trail becomes flatter and much faster to the end.
To return to the trailhead, either run back on the trail or along the Peak To Peak Highway.
The trail is open year-round is snow covered from fall to spring.
Run this trail?
We need help with the following missing trail information:
Need to Know, Flora & Fauna, Runner Notes
Land Manager: USFS - Arapaho & Roosevelt National Forests Office