History
A large lake, Lake Cahuilla, existed in the area from about 20,500 to 3,000 years ago and left evidence as wave cut benches on the higher portions of the Salton Buttes. A beach mark outlines the shoreline of ancient Lake Cahuilla where archeologists found rock fish traps and charred remains of razorback sucker and bonytail bones. High water lines suggest the basin has filled many times, creating a lake some 105 miles (170 km) in length and nearly 300 feet (100 m) deep. Its most recent incarnation is evidenced by fish traps found some 30 feet (10 m) below the high watermark that were estimated to be between 300 and 1,000 years old.
In recent times, the 1862 Colorado River flood waters reached the Salton Sink, filling it and creating a lake some 60 miles (95 km) long and 30 miles (50 km) wide. In 1884 and 1891 the Colorado River had escapement flow into the Salton Sink. The 1891 flood created a lake that covered an area 30 miles (50 km) long and 10 miles (15 km) wide. A larger 1905 Colorado flood escaped into a diversion canal, forming the Alamo and New Rivers and creating the current Salton Sea in the sink's Coachella Valley. A 1907 dam prevents flood escapements, but leakage still occurs to the Salton Sea.
Read more about this topic: Salton Sink
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