Lake Mungo find more evidence for the "out of Africa" theory. The rich archaeological heritage of the site is very significant to the Aboriginal Australian people from the area. The Willandra region is inhabited by the Barkindji, Nyiampaa and Mutthi Mutthi peoples, who have now entered Joint Management Agreements with the Government of New South Wales to manage the lake and the Mungo National Park. In 1972, Archaeomagnetic studies were conducted on the prehistoric aboriginal fireplaces occurring along the ancient shoreline of Lake Mungo. Magnetization preserved in oven-stones and baked hearths show that the axial dipole field moved up to 120 degrees
Innes National Park broad classification known as "archaeological sites". The following two sites at Inneston and Stenhouse Bay associated with the mining of gypsum are listed on the South Australian Heritage Register - the "Inneston Gypsum Complex" and the Stenhouse Bay Jetty. At least four shipwrecks which are located within the national park or immediately adjoining its coastal boundary are protected under Australian and state historic shipwrecks legislation. SS "Marion" which run aground to the immediate east of Chinamans Hat Island during 1862 is protected under the Australian "Historic Shipwrecks Act 1976". "Ethel" which run aground on the coastline between West Cape and