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.
Native Alaskans, oil company representatives, environmentalists, politicians, and others tell the story of the 800-mile pipeline.
The contradictory history of a dam that became a statement of American power and prestige.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.
When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
Schools taught Native Americans to imitate white men in a liberal "civilizing" mission in 1875.
Before radar had been invented a devastating hurricane hit America, surprising residents of the East Coast and killing more than 600 people.