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 Cape Spencer on a beach now known as Ethel Beach during 1904 is protected under the South Australian "Historic Shipwrecks Act 1981". SS "Ferret" which run aground in 1920 on what is now Ethel Beach is protected under the "Historic Shipwrecks Act 1976". "Hougomont" which was scuttled in 1932 to form a breakwater lies close to the coastline near Stenhouse Bay is protected under the "Historic Shipwrecks Act 1981". Innes National Park Innes National Park is a protected area in the Australian state of South Australia located on the southwest tip of Yorke Peninsula about west of the state capital