About
Ağsar Castle is situated in a steep and rugged location between Çeltikçi, Kurumcu, and the Çamlıdere Dam, forming a perpendicular alignment with Alicin Monastery. The castle stands on the summit of a rocky outcrop at an elevation of approximately 300 meters on the southern slope of the stream between the dam inlet and Kısıkkaya. The precise period of its construction remains unknown; however, the aesthetic qualities of the masonry are considered to resemble Phrygian workmanship. On the slope of another nearby peak, a secondary structure consisting of four walls is also present. This structure is believed to be of Islamic origin and is thought to have been used as a dairy farm (mandıra). According to an alternative interpretation, it may have functioned as a derbent—a security outpost constructed during the Ottoman period to ensure the safety of transportation routes.