Lake Eyre, South Australia.
A salt lake is a saline lake in a desert region. The lake originates in an area of inland drainage. The salinity increases as the water evaporates, and layers of salt may crystallize out along the lake's shores. Prolonged rain may redissolve the salt and wash most of it away. The largest salt lakes are Lake Eyre in Australia and the Great Salt Lake in Utah. See also salt flat.