IronHike Endurance Series

OCT

1-4

2026

Experience a massive endurance test at Mohawk Mountain Ski Area. This ultra trail event features a 152 mile course with over 72,000 feet of elevation gain to be completed within 84 hours.

1-4 Oct 2026

Cornwall, Connecticut

Website

152 miles

Always double-check with the organizer's website! This page may contain affiliate links.

IronHike Endurance Series

The IronHike Fall Olympus Mons Ultra Trail Marathon is an endurance event held at the Mohawk Mountain Ski Area in Cornwall, Connecticut. Organized by a US military veteran-owned business, the event is designed for participants to run, hike, or walk through a designated course on the mountain terrain.

Participants navigate the slopes of the ski area over several days. The event features a single ultra-distance category:

152 miles with a total elevation gain of 72,590 feet and an 84-hour time limit.

The course utilizes the geography of the Mohawk Mountain Ski Area, located at 46 Great Hollow. The event is powered by Skratch Labs and focuses on high-elevation gain and long-duration endurance. Registration for the event opens approximately one year in advance. Visit the organization's website for the most recent information.

152 mi

Olympus Mons Ultra

84-Hour