Serpentine Lakes

The Serpentine Lakes are considered an important wetlands area. They form part of a major palaeo-drainage system, a now-inactive drainage system from the Palaeozoic era. The surface of the lake normally consists of dry clay, silt and sand, and is covered with a salty crust. The sediment is mostly quartz arenite. The lakes form the main channel of the palaeo-drainage system. Other channels are covered by sand dunes and are not well defined. The surface elevation is 264 m (866 ft) above mean sea-level.

Tektites high in magnesium have been found in these lakes.