Land Systems of the Western Desert. (IMAGE) University of Adelaide Caption Land systems of the Western Desert include (A) stony plains, (B) sand plains, (C) sandridge desert and (D) montane desert uplands. These coarse-scale geographical units feature prominently in past ecological and archaeological models of pre-contact Aboriginal land use. Recent satellite modelling depicts the highly varied suitability of foraging habitats within these arid land systems. Credit Photos: W. Boone Law. Usage Restrictions Please use only in association with this research and credit author. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.