When an earthen dam broke without warning, a small city in Pennsylvania was swept away in a wall of water over 30 feet high.
The inspiring story of the modern environmental movement.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
Today one of the most-recognized figures in American literary history, poet Walt Whitman was denounced by critics in his own time.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.
A daunting story of shipwreck, starvation, mutiny and cannibalism amongst a group left abandoned in the high Arctic.
President Theodore Roosevelt was caught in the middle of the first major battle for wilderness preservation in Yosemite National Park.
The epic battle waged over dinosaur fossils by rival paleontologists in the American West.