Title: Damming Grand Canyon
Subjects: Biography, Dams, Description and travel, Environmental conditions, Geological Survey (U.S.), History, Political aspects of Water-supply, River surveys, Water resources development, Water-supply, Expeditions & Discoveries, United States - 20th Century/20s, United States - State & Local - Southwest, History / United States / State & Local / Southwest (AZ, NM, OK, TX), History - U.S., 20th century, Arizona, Colorado River (Colo.-Mexico), Grand Canyon Region, Political aspects, History: American, Water-supply, mexico, Grand canyon (ariz.), Arizona, description and travel, Colorado river and valley, description and travel
Places: Arizona, Colorado River (Colo.-Mexico), Grand Canyon, Grand Canyon (Ariz.)
Time periods: 20th century