Colorado River

The Colorado River is 2,330 kilometers long. The river's source is the Rocky Mountain National Park, and it empties into the Gulf of California. From Lake Powell to the Grand Canyon, Hoover Dam, and Lake Mead, the Colorado River passes through a number of well-known basins and lakes. It also serves as a state boundary in a few instances, spanning between Arizona and Nevada, and later between Arizona and California. The Colorado River is also a key supply of water for large cities such as Los Angeles, Las Vegas, San Diego, Phoenix, and Tucson, which are served by aqueducts that transport water from the river to the cities.

The Colorado River and its hundreds of magnificent tributaries carved out the Grand Canyon and blasted the Rockies for six million years, washing mineral-rich material to the sea. These rivers were never dry, even when they were flooded. However, the Gila River, Arizona's second-largest tributary, is mostly dry in its lower reaches; the Salt River, which supplies Phoenix, no longer makes it to a confluence with the Gila; the Santa Cruz is only visible beneath Tucson bridges during rare floods; and the Colorado River itself, almost unbelievably, has stopped flowing to the sea in most years since the completion of Glen Canyon Dam in 1966.

Length: 2,330 Km