Preservationist, naturalist, author, explorer, activist, scientist, farmer, John Muir (4/21/1838 – 12/24/1914) was all these things and more. Nearly a century after his death, this Scottish American is remembered and revered as the father of the environmental movement and the founder of the Sierra Club, the oldest and largest grassroots environmental organization in the United States. American Masters continues its 25th anniversary season with John Muir in the New World. Explaining his impact then and now, this 90-minute documentary delves into Muir’s life and influences with reenactments filmed in high definition throughout the majestic landscapes he visited: Wisconsin, Yosemite and the Sierra Nevada, the Alhambra Valley of California, and the glaciers of Alaska. Placing our nation’s most important natural assets in a cultural and social context, John Muir in the New World is a timely reminder of America’s unique and, ultimately, threatened ecosystems.