Tough Mountain Challenge - Photo Credit: Sunday River

Tough Mountain Challenge

What Is TMC? The Tough Mountain Challenge is an adventure 5K race that combines alpine terrain with natural and manmade obstacles. Running through snowguns and scrambling in the mud will push your limits. But, it’s not just about finishing first or last; it’s about conquering the course and celebrating your triumph. It might be the most fun you’ll ever have while also considering crying.

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Events > Tough Mountain Challenge
Sunday River
15 South Ridge Road
Newry, ME 04261 United States
(800) 543-2754
About the Event
Presented by
Sunday River
July 26, 2025

Get Tough, Get Lucky Sign up for the 2025 Tough Mountain Challenge for the chance to win incredible prizes, including a new camper, Red Sox tickets, and more! Registration automatically enters you into the prize drawing on July 26 at 5:30PM. Participants must be 18 or older, and present, to win.

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