President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation, over the building of Hetch Hetchy Dam in Yosemite National Park.
Three years before the Gold Rush, 87 pioneers took a shortcut westward to California, only to get caught in the snows of the Sierra Nevada.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
In 1934, American polar explorer Richard Byrd became the first to experience winter in Antarctica's interior.
The New Deal program CCC put three million young men to work in camps across America.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The contradictory history of a dam that became a statement of American power and prestige.
As the star attraction of Buffalo Bill's Wild West Show, Annie Oakley thrilled audiences around the world with her shooting feats. Part of the Wild West collection.
In 1927, the Mississippi River flooded from New Orleans to Illinois, leaving a million people homeless and leading to a major black migration to the North.