Tough Mountain Challenge
Always double-check with the organizer's website! This page may contain affiliate links.
Tough Mountain Challenge
The Tough Mountain Challenge is an outdoor obstacle race held on July 25, 2026, at Sunday River Resort in Newry, Maine (15 South Ridge Road, Newry, ME 04261). The event is staged on mountain terrain and uses ski trails, wooded areas, and natural mountain features as part of the course.
The course is approximately 5K and includes mud, water, walls, wooded sections, and a variety of custom-built obstacles. The organizer’s materials note that the event combines physical obstacles with on site elements described as mud, sweat, and cold beer. The event has been held since 2010 and attracts large fields of participants, with an organizer figure of 3,600 competitors in recent years.
The venue also hosts a Mini Mountain Challenge for younger participants; registration for that event is noted to open in the fall. Event information references lodging options at the resort and suggests that lodging deals are offered around the event weekend. Contact and additional event details are available through the event location at Sunday River Resort. Visit the organization's website for the most recent information.
