Eryx was an ancient city and a mountain of Magna Graecia in the west of Sicily, about 10 km from Drepana, and 3 km from the sea-coast. It wa…Eryx was an ancient city and a mountain of Magna Graecia in the west of Sicily, about 10 km from Drepana, and 3 km from the sea-coast. It was located at the site of modern Erice.