60 Hours of Hell: The Story of the Barkley Marathons
Inspired by an infamous assassin's escape from prison, the Barkley Marathons just might be the toughest race on the planet: a 100-mile-long, unsupported slog through the Tennessee backcountry that only 14 people have ever finished. Madison Kahn spoke to three of the event's regulars to get the story behind the Barkley.