Lake Mead, the largest reservoir on the Colorado River –– and in the U.S. –– is now only 46% full, down about 110 feet since 2000
30 million: Number of Westerners who get their water from the Colorado River.
7: Number of Western states that the Colorado and its tributaries travel through (Arizona, California, Colorado, Nevada, New Mexico, Utah, Wyoming).
5.2 trillion: Gallons of water allotted to those 7 states.
1,400: Miles the Colorado travels.
18 million: Number of Californians whose water comes from the Colorado (about half the state’s population).
246,000 square miles: Size of the Colorado River watershed.
4 inches: Average rainfall in the majority of the river basin.
17 million: Number of years ago that the Colorado started carving the Grand Canyon.
Next: Water-saving resources