Paleovalley distribution within Western Australia, South Australia and the Northen Territory.

Paleovalleys as modelled at 1:3 000 000 scale by Geoscience Australia for the WASANT Palaeovalley Map as part of the Palaeovalley Groundwater Project.

This map covers the arid and semi arid areas of three States: Western Australia, South Australia and the Northern Territory and is often referred to as the WASANT Palaeovalley Map. Although originally purposed to only include the arid areas, many paleovalleys extend into non-arid regions and these have been mapped as complete systems.The map has been drawn at 1:3 000 000 scale as a broad overview of the main paleovalleys in these states, and should only be used as a generalized first step toward detailed study at any particular site.

The WASANT Palaeovalley Map has been based on national scale datasets, such as surface geology, MrVbf_5, 3 second DEM, and information and feedback from geologists and hydrogeologists in each State. Some smaller palaeovalleys are likely to exist and perhaps remain to be discovered outside the polygons in the map. Also some corners of the paleovalleys mapped here may have very poor or non-existent paleovalley features hidden below the surface.

This map has been produced by Geoscience Australia and funded by the National Water Commission. The map was compiled by JG Bell, PM English, PL Kilgour, SJ Lewis and JDH Wischusen (Geoscience Australia) and MF Woodgate (Department of Natural Resources, Environment, The Arts and Sport, Northern Territory) with contributions from DP Commander, AM Kern and EL Leonhard (Department of Water, Western Australia), B Hou (Geological Survey of South Australia), and SJ Tickell (Department of Natural Resources, Environment, The Arts and Sport , Northern Territory).