29 – Parco nazionale di Yosemite, Stati Uniti

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FILE – In this April 16, 2009 file photo, ice forms around a rainbow at the base of Vernal Falls on the Mist Trail in Yosemite National Park. Search and rescue rangers at Yosemite National Park were scouring an area below the popular waterfall Tuesday afternoon, July 19, 2011, after witnesses reported seeing at least one hiker being swept over the falls. (AP Photo/The Tahoe Tribune, Jonah M. Kessel)