By A Mystery Man Writer
Royal Robbins pioneered the technique and ethics of big wall climbing.
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The Oral History of Rock Climbing in Joshua Tree National Park - Joshua Tree National Park (U.S. National Park Service)
Legends of Yosemite Adventure Sports Journal
Man dies in Yosemite climbing accident
Tom Frost, Mountaineer Who Designed a Cleaner Climb, Dies at 82 - The New York Times
Dean Caldwell's Instagram, Twitter & Facebook on IDCrawl
The Strange Brain of the World's Greatest Solo Climber - Nautilus