Abstract: In this study, geological and geotechnical properties of the Görmel dam site and its reservoir area have been evaluated.Görmel formation, widely extended at the dam site and the reservoir area, consists of mostly impervious marls. The fractured and jointedmarly levels between 20 and 30 meters at the drillings of the dam site need to be grouted. The slope washes on the slopes of the dam siteshould be removed away before construction of the dam. Çamlıca formation`s ophiolitic rocks, cropping out in the reservoir area, are impervious. Stability and watertightness problems are not common features in the dam site and the reservoir area. As a result, the Görmeldam site is a suitable place for construction of a dam.