Robert Marshall, Aldo Leopold and Howard Zahniser dedicated their lives to protect the shrinking American wilderness.
The most daring and innovative accomplishment at the turn of the 20th century.
The Chiricahua Apache medicine man and warrior who refused to accept white man's 'civilization.' Part of The Wild West collection.
The 300-year saga of the American whaling industry.
The ultimate frontiersman, Carson inspired popular novels before being associated with the "Long Walk" of the Navajo people.
In 1936 Angie Debo uncovered the U.S. government's theft of Native Americans' oil rich lands in Indian Territories of Oklahoma.
Her 1963 warnings about the effects of pesticides and herbicides sparked a revolution in environmental policy.