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On El Capitan's Dawn Wall, Climb Thought to Be World's Toughest Progresses Slowly - The New York Times
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The Push by Tommy Caldwell review – the hardest rock climb ever | Sport and leisure books | The Guardian
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On El Capitan and Beyond, Tommy Caldwell's Drive Pushes Him Toward the Impossible - The New York Times
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Estes Park's Tommy Caldwell survived a 100-foot fall before shattering the ascent record on El Capitan – The Denver Post
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