President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
How do you manage weapons of mass destruction without being destroyed by them?
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.