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IronHike Endurance Series

Name: IronHike Endurance Series
Start: 2026-10-01
End: 2026-10-04
Location: Cornwall

Cornwall, United States • 1-4 Oct 2026

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.

United States Connecticut Cornwall

Race information

Registration

152 mi

Olympus Mons Ultra

84-Hour

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday May 9

Spring Fling 600

Southington

Backyard Ultra

6 mi

600 min

Experience the eighth annual Spring Fling 600 trail races at YMCA Camp Sloper. Choose between a 6 mile race or a 10 hour challenge to complete as many loops as possible on a scenic three mile course.

Sunday May 17

Running Battles Trail Race

Wolcott

4 mi

Run a 3.5-mile trail race in Wolcott, CT. The event supports the local cross country teams. Your entry includes access to the CT Food Truck Battles Festival afterward.

Sunday May 24

Mine Hill Half Marathon

Roxbury

Half Marathon

Mine Hill Half Marathon is a 13.1 mile road race in Roxbury, Connecticut, with start and finish at Mine Hill Distillery. The course passes farms, fields and scenic vistas and includes a post-race gathering at the distillery.

Thu - Sun Jun 4-7

Ironhike Endurance Series - Spring

...

Multi-day elevation based endurance events at Mohawk Mountain in Connecticut, June 4 to 7, 2026. Solo, Trail Buddy and Trail Family formats cover timed events from a 12-hour 15-mile option up to 84-hour 152+ miles with large elevation gain.