Pleuron

Pleuron was a city in ancient Aetolia, Greece. The name refers to two settlements, the older of which was at the foot of Mount Curium between the river Acheloos and the river Evenos, and was mentioned by Homer in the Catalogue of Ships in the Iliad. The territory of Pleuron was called Pleuronia. The ruins of this more ancient city are 1.5 kms to the southeast of the newer one. The circuit wall "consists of crudely-hewn, loosely fitted blocks" which in early publications and repeated since are rather suggestively described as Cyclopean walls.

Old Pleuron was situated in the plain between the Achelous and the Evenus, west of Calydon, at the foot of Mount Curium, from which the Curetes are said to have derived their name. Pleuron and Calydon were the two chief towns of Aetolia in the heroic age, and are said by Strabo to have been the ancient ornament of Greece.

Source: Wikipedia