The Amangu are an indigenous Yamatji people of the mid-western region of Western Australia.
[2] The Amangu's territory stretched over some 10,100 square miles (26,000 km2), centring on the area of Champion Bay, and the Chapman River.
The inland extension was from the coast as far as the vicinity of Mullewa, Morawa and Carnamah.
The southern frontier is not clear, but is believed to have run down to the vicinity just north of Moora.
[3] Excavation at Yellabidde Cave near Leeman indicate that the Amangu territory was occupied as early as 23,000 BP, putting back the accepted date for habitation of the Perth-Geraldton coast by some 15,000 years.