Prehistoric settlement in coastal Cilicia, southeast Turkey (Anatolia), the site of the Mound of Gözlüküle (Gözlü Kale). It was occupied from the 5th-1st millennia BC with a sequence paralleling that of Mersin. This included a late Neolithic, Chalcolithic, Early Bronze Age, Middle Bronze Age, Late Bronze Age, Iron Age, and early medieval period occupations. . Tarsus' prosperity between the 5th century BC and the Arab invasions in the 7th century AD was based primarily on its fertile soil, its position at the southern end of the Cilician Gates, and the great harbor of Rhegma, which enabled Tarsus to establish strong connections with the Levant.