Domuztepe is a large (20 hectares) site, dating to the Halaf period of the 6th millennium BC. It has extensive prehistoric architectural, burial, and occupational remains. The site also has evidence of Roman and Medieval occupation, including a cemetery dating to the 9th-10th centuries AD and an Early Medieval building with thick plaster mortar walls. Joint excavations led by Elizabeth Carter of the University of California, Los Angeles and Stuart Campbell of the University of Manchester have been underway since 1995.