Black Diamond athlete Tommy Caldwell is arguably the world's best big-wall free climber, and he focuses much of his attention on imposing unclimbed lines on Yosemite's iconic El Capitan. The past few years, Tommy has been putting massive amounts of energy into his Dawn Wall project, a still-unclimbed beast that's stacked with pitch after pitch of improbable and insecure 5.14 climbing. How does Tommy stay in shape for his yearly attempts on this futuristic route? We took a trip to Tommy's house in Estes Park, Colorado to find out.

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