Myrina is an ancient harbor city and issituated in north o f İzmir in east-west direction Güzelhisar valley (Aliağa) thataffected by natural environmental changes during Pleistocene and Holocene. Because o f site selection and construction materials geological and paleogeographical features of surrounding o f city is important. For this purpose, firstly, geological-tectonic features paleogeaographical and geoarcheological interpretations according to drills in surrounding of ancient city were carried out. With facies approach, it is determined that sedimentation and orogenesis was effective in Cretaceous, erosion was effective in Paleogene, lacustrine sedimentation and volcanism were effective in Neogene, erosion was effective in Upper Miocene and sedimentation was effective both Pliocene and Quaternary. It is understood that site between Öteki and Beriki hills that ancient city is settled on was narrow and shallow marine strait in 5000 BP, there was lagoonary conditions between two spits and tombolo evolution in 4000 BP., with the beginning of Aolis colonization first settlements and harbor was occurred in 3000 BP. In this period it is determined by element analysis that terracotta's clay-mud and volcanic and sedimentary rocks for construction was brought from closer sites to ancient city.