Ironhike Endurance Series - Spring

Event overview

IronHike Series - Spring '26 is an endurance event held at Mohawk Mountain Ski Area in Cornwall, CT, taking place in early June 2026 (June 4-7 stated for the series). The format supports solo participants, Trail Buddy teams of two, and Trail Family teams of three or four. Events use a FlexRelay format with participant-managed pacing, hydration, and sleep. Events are offered across multiple durations and may include night trekking that requires a headlamp. Military, veterans, and first responders from any country receive a $30 registration discount with code brave30.

Events and distances

• Kuwohi - 15 miles | 7,140' elevation | 12-hour
• Double Kuwohi - 28+ miles | 13,685' elevation | 24-hour
• Denali - 43+ miles | 20,825' elevation | 48-hour
• Everest - 61+ miles | 29,155' elevation | 72-hour
• Olympus Mons Ultra - 152+ miles | 72,590' elevation | 84-hour
• Answer the Bell Ultra - Basic - 28.8 miles | 14,400' elevation | 24-hour
• Answer the Bell Ultra - Full - 100+ miles | 50,400' elevation | 84-hour

Included services and format notes

Registration includes tenting space for the participant and up to six spectators, base area pop-up staging, a support station with shade, fire pit, hydration and snacks, personalized event bibs, summit tokens, finisher medals and hats, custom training plans by Chaski Endurance Collective, ski patrol medical support, free parking, spectator area and restrooms. The series is presented as a non-competitive endurance experience with no podiums, records, or age-group awards. Visit the organization's website for the most recent information.