High Five 100 - Lake City, CO
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Event overview
The High Five 100 is a self-directed mountain endurance challenge based in Lake City, Colorado. The event centers on a roughly 100-mile route that begins and ends in Lake City and visits 24 specified locations. Registration opens on January 1, 2026.
Format and course details
Participants must travel on foot from Lake City to a sequence of 24 locations that include proof points and checkpoints. Proof points are used to verify location visits; instructions for these points are given at a pre-challenge meeting the evening before the event. Checkpoints are the only locations where crew or a runner’s drop bag may provide aid. Runners may choose their own route between points but must visit all points in the specified order.
Distance and difficulty
The most practical route is estimated at 90 to 105 miles with over 40,000 ft of cumulative elevation gain. Completing the course requires returning to Lake City before a 48-hour cutoff. The route passes over multiple high peaks in the San Juan Mountains, including five 14,000-foot summits and six 13,000-foot summits.
Logistics and rules
The event does not charge an entry fee. The course is unmarked, there are no aid stations, and finishing does not include a medal. Participants are expected to follow wilderness regulations. Visit the organization's website for the most recent information.
