Great Zab
In the middle third millennium BC, Elam emerged as a powerful political entity in the area of southern Lorestan and northern Khuzestan. Susa (level IV) was a central place in Elam and an important gateway between southwestern Iran and southern Mesopotamia. Hamazi was located in the Zagros Mountains to the north or east of Elam, possibly between the Great Zab and the Diyala River, near Halabja.