High Lonesome 100 Mile2026

17.07 – 18.07.2026Mount Princeton (United States)

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Pacing, fueling and crew sheet for the course you pick

7’102 m D+

160.9 km100mi

1 course

160.9km
7’102 m D+
6’262 m D-
avg 4%
100mi
17.07.
No index
GPX

Course analysis

100mi160.9 km7’102 m D+

232effort kmⓘ160.9 km on the map · feels like 232 km

D+: 7’102 m
D−: 6’262 m
Max alt.: 3’989 m
Steepest: 16%

Segments

Elevation profile: 100mi

2’504 m — 3’989 m

Feels like these

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on High Lonesome 100 Mile, in one roadbook.

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The race

A high flying endurance race in the Sawatch Range of the Colorado Rocky Mountains. With 23,500' of vertical gain, reaching an elevation of 13,150', it's a hell of a course.

Where to stay

Find a place to stay near Mount Princeton for the race.

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Editions