Tommy Caldwell: “An Evolution of 18 Years of Climbing El Cap”

Tommy Caldwell and Kevin Jorgenson made history on January 14^th when they achieved the first free climb of the Dawn Wall of El Capitan in Yosemite National Park. Today, Tommy and his adventurer father Mike came through the KGNU studios and spoke with correspondent Alycin Bektesh about the nerve-racking accomplishment.

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