Two weeks have passed since they last stepped on horizontal ground, but Tommy Caldwell and Kevin Jorgeson are still clutching to El Capitan - the sheer marble monolith in Yosemite National Park.

A father and son team is getting ready to take on one of the most famous vertical rock formations in the world -- Yosemite's El Capitan. Joe Baker and his eight-year-old son, Sam, are getting ...