Dedegol, the highest peak in this mountain range rises to 2,992 meters. An important city of ancient Pisidia, Altinkaya (Selge), northwest of the Koprulu Canyon National Park, is reached by a winding mountain road. The city walls, towers, cisterns, temple to Zeus, agora, stadium, theatre, gymnasium and necropolis remain from this commercial city that stood at an elevation of 950 meters. Historians verify that Selge had direct trade with Antalya, which brought it prosperity.