Bonneville

A time in the late Pleistocene Epoch about 30,000 years ago when a prehistoric lake formed covering an estimated 20,000 square miles (52,000 sq km), over much of western Utah and parts of Nevada and Idaho in the US. These conditions existed during the interval of the last major Pleistocene glaciation. Lake Bonneville shrank rapidly in size and, by 12,000 years ago, had permanently shrunk to a point where it had become smaller than the Great Salt Lake.

A time in the late Pleistocene epoch about 30,000 years ago when a prehistoric lake formed covering an estimated 52,000 km2 (20,000 square miles), over much of western Utah and parts of Nevada and Idaho in the US. These conditions existed during the interval of the last major Pleistocene glaciation. Lake Bonneville shrank rapidly in size and, by 12,000 years ago, had permanently shrunk to a point where it had become smaller than Great Salt Lake.