About
Originating from the Işık Mountains to the north of Kızılcahamam, the Kirmir Stream and the İlhan Stream, which rises from Mount Hızır to the northeast of Güdül, merge near Gömleksiz Bridge after being joined by the Ayaş Stream from the south. Asartepe Dam is located to the east of the İlhan Stream. The valley features numerous geological formations, reflecting significant natural diversity. Before reaching Asartepe Dam, the stream converges with Ağan Stream. The İlhan Stream Valley extends as far as the vicinity of Tekke Village in the Kahramankazan district. The valley is well suited for nature-based activities such as hiking, photo safaris, and birdwatching.