July 25, 2026
Registration
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Participants at the Tough Mountain Challenge at Sunday River Resort, in Newry, Maine, climb up the side of a trail covered with water, tires, and rope during the obstacle course.
2026 Lodging Deal
Early registrants get exclusive access to Tough Mountain lodging deals. Why? Because you didn’t wait around like a maybe. You committed. You’re in. Now enjoy the perks.
Save up to 20% on resort lodging on Tough Mountain Challenge weekend using promo code TMC.