IronHike Endurance Series

The IronHike Endurance Series, held at Mohawk Mountain Ski Area in Cornwall, Connecticut, is a multi-day endurance event featuring rugged, scenic courses designed to challenge participants with significant elevation gains. Spanning from October 2 to 5, 2025, the series offers various timed events ranging from 12 to 84 hours, including distances from 15 miles (Kuwohi) up to 152+ miles (Olympus Mons Ultra). Participants can compete solo or in teams of two to four in a FlexRelay format, managing their own pacing, hydration, and rest.

The event emphasizes personal transformation over competition, providing exclusive access, support stations, tenting, medical aid, and a supportive community atmosphere. Visit the organization's website for the most recent information.