John Wesley Powell's epic journey into the unknown Grand Canyon was filled with adventure as his team mapped the Colorado River for the first time.
Vivid memories of those trapped in the terrifying temblor of 1906 that killed thousands of Californians.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.
This stunning film portrait of Yosemite National Park uses the 1851 diary of the first expedition of soldiers into the Native American territory.
She set out to save a species… us.
The coal miners' battle for dignity led to the largest armed insurrection since the American Civil War.
The 300-year saga of the American whaling industry.
The life of the legendary photographer, known best for his black and white images of the wilderness of the American West.