Biography of John Muir
57:58
1980s Yosemite - Full Vintage Documentary - 3225
5:13
Who owns the "wilderness"? - Elyse Cox
1:11:04
21 días de senderismo en silencio en el John Muir Trail en California
1:03:53
Henry David Thoreau: A Life
10:29
John Muir Award Information Film
5:15
Theodore Roosevelt's Conservation Influences
23:14
Forgotten Historical Places inside Yosemite Valley
2:48