Colorado River Basin: Key Reservoirs and States
The Colorado River supplies water to millions of people across the American West through a network of reservoirs, dams and waterways.
Map of the Colorado River Basin in the western United States, shaded in blue and spanning parts of Wyoming, Colorado, Utah, New Mexico, Arizona, Nevada and California. Major reservoirs are marked and labeled, including Lake Powell in Utah and Arizona, Lake Mead on the Nevada-Arizona border, and Lakes Mohave and Havasu farther downstream. State boundaries are outlined, and the map highlights the geographic extent of the basin that supplies water to communities across the American West.
