New research by Flinders University researchers, conducted in partnership with the River Murray and Mallee Aboriginal Corporation (RMMAC), has documented ancient archaeological sites on the cliff-tops in the region between Morgan and Overland Corner in South Australia. New research by Flinders University researchers, conducted in partnership with the River Murray and Mallee Aboriginal Corporation (RMMAC), has documented ancient archaeological sites on the cliff-tops in the region between Morgan and Overland Corner in South Australia. Archaeology Phys.org – latest science and technology news stories