As Cooper’s Lake Campground in Slippery Rock, Pa., filled with athletes for the Tough Mudder, a designated section of the festival was designed with four-legged athletes in mind.
The Ruff Mudder, an obstacle course for dogs and their owners to go through at their own speed, was a product of Chewy and Tough Mudder.
Some of the obstacles set up included ramps to climb over, tubes to run through, and mud pits to slash in.
