Uploaded May 2014 | Updated September 2026, 36 minutes ago

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Signed by President Abraham Lincoln in 1864, the Yosemite Grant set aside Yosemite Valley and the Mariposa Grove of Giant Sequoias for protection, establishing the very idea of today's National Parks. With filmmakers Ken Burns and Dayton Duncan. For the audio described version of this video, go to youtu.be/xqTo6kCqlVk.