600 cyclists will be traveling vertically Saturday in the annual Mt. Washington Hill Climb. Many cyclists believe it's the toughest climb in the world. We'll talk to racer Steve Vosburgh who's taken the mountain challenge on numerous occasions and is racing Saturday, and also to sports psychologist Frank Farley of Temple University to find out what motivates some people to ride, hike, or run to the top of an extremely steep and often dangerous mountain.
