Oreus is situated at the foot of the mountain Telethrius in the Drymus,1
as it is called, on the River Callas, upon a high rock; and hence, perhaps, it was because the Ellopians who formerly inhabited it were mountaineers that the name Oreus2
was assigned to the city. It is also thought that Orion was so named because he was reared there. Some writers say that the Oreitae had a city of their own, but because the Ellopians were making war on them they migrated and took up their abode with the Histiaeans; and that, although they became one city, they used both names, just as the same city is called both Lacedaemon and Sparta. As I have already said,3
Histiaeotis in Thessaly was also named after the Histiaeans who were carried off from here into the mainland by the Perrhaebians.