Title: A River Running West
Subjects: Conservationists, Open Library Staff Picks, Explorers, Biography, Discovery and exploration, Powell, john wesley, 1834-1902, West (u.s.), discovery and exploration, Geologists, Discoveries in geography
Places: Colorado River (Colo.-Mexico), Grand Canyon (Ariz.), United States, West (U.S.)
People: John Wesley Powell (1834-1902)