The Salton Sea is a large inland endorheic lake in the United States state of California. It is approximately long from north to south, and wide from east to west. It is well below sea level, with its surface elevation at , and its deepest part is deep. The New River and Alamo River flow in from the south, while the Whitewater River flows in from the north. It was created in 1905, when heavy rain flooded the Colorado River and caused it to flow into the basin that now holds the Salton Sea.