Madjedbebe (IMAGE) University of Queensland Caption Madjedbebe is a sandstone rock shelter at the base of the Arnhem Land escarpment, and is Australia's oldest documented site. Credit University of Queensland Usage Restrictions With credit 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.