Apollonia or Apollonia-on-the-Rhyndacus (Ancient Greek: Ἀπολλωνία ἐπὶ Ῥυνδακῷ, Apollōnía épì Ryndakō; Latin: Apollonia ad Rhyndacum) was an ancient town near the Rhyndacus river in northwestern Anatolia. Strabo placed it in Mysia, causing some to misidentify the site as Uluabat on the western shore of Lake Uluabat. However, the site is actually the promontory tombolo on the northeastern shore, near modern Gölyazı. The remains of Apollonia are inconsiderable. The Rhyndacus flows into the lake and issues from it a deep and muddy river. The lake extends from east to west and is studded with several islands in the northeast part, on one of which is Gölyazı, but the dimensions vary greatly through the seasons.

• http://en.wikipedia.org/wiki/Apollonia ad Rhyndacum