The Gediz Graben is one of the grabens formed due to the tectonic movements in the region. It is thought that this graben began to form in consequence of the formation of the Karadut fault which is a separation fault. There are listric faults to either side of the graben which have caused the graben to intermittently collapse. From the mountainous areas towards the plain the age of these faults become younger. The difference in height between the base of the graben and the highest part of the Bozdag Mountains is about 2000 meters. This difference in elevationis remarkable, clearly indicating the severity of the tectonic movements in the neo-tectonic period.
Geoparks are special nature conservation areas, where different or the same type of geological heritage of international importance are located, managed and planned. Elements that explain the formation of the earth's crust, representatives of a known event, rare or extremely large formations are defined as geological heritage.