In 1977, during the construction of a tunnel at Aksu, in the İlçe of Eǧridir, a statue of the river god Eurymedon was discovered and brought to İsparta Museum. This proved to have come from a sanctuary situated in front of a cave, known as the Zindan maǧarası, overlooking the river Aksu. The statue has remained unpublished to date, and for permission to make it known here I am grateful to the Museum Director, Mr İlhan Ünlüsay. In 1982 I acted as the Turkish government representative for Dr. Stephen Mitchell's survey at Yalvaç (Pisidian Antioch); he gave me friendly encouragement to write this article. I would like to thank him for providing translations and notes on the inscriptions, and also Dr. Marc Waelkens for sending his observations on the architectural remains at the sanctuary.