BEAVER CREEK — The dangling yellow wires above the icy pool are pulsing with electricity — 10,000 volts of muscle-seizing sizzle. "Oh, it's a hard hit, for sure," says Nolan Kombol, the creator of the electrifying Tough Mudder race course obstacle. "No matter how big you are or how strong you are, everyone takes a hit on this one. It's an equalizer."
Tough Mudder: Obstacle Courses Give Ski Resorts A Summer Boost