Set in the spectacular Yosemite Valley in California, this is the story of the father of the modern conservation movement and one of the founders of America's National Park movement. John Muir was a 19th-century adventurer who explored the natural world and devoted his life and work to persuade others to see the sacred beauty of his discoveries. A BBC Production.

Originally released by BBC, 2011. Streaming video file encoded with permission for digital streaming by Infobase on April 29, 2015.

Introduction: John Muir: Last Explorers (1:41); --Packing for Adventure (2:07); -- Motivation for Exploration (1:43); -- Revelation Through Exploration (1:36); -- Muir's Christianity (4:02); -- Rock Climbing in Yosemite (3:45); -- Mountaineering (3:32); -- Yosemite Falls (2:50); -- Understanding the World (1:57); -- Letters from Yosemite (2:08); -- Spreading the Message of Nature (3:08); -- Sequoia Trees (4:40); -- Muir Loses Touch with His Wilderness (2:22); -- Muir's Return to the Wilderness (3:04); -- Yosemite National Park (3:39); -- John Muir Effect (1:57); -- Guardian of National Parks (2:13); -- The President and National Parks (3:11); -- Credits: John Muir: Last Explorers (0:45); .