CHAPTER 129

Now there is a tradition that Thessaly was in ancient times a lake, shut in on every side by huge hills. Ossa and Pelion- ranges which join at the foot- do in fact inclose it upon the east, while Olympus forms a barrier upon the north, Pindus upon the west, and Othrys towards the south. The tract contained within these mountains, which is a deep basin, is called Thessaly. Many rivers pour their waters into it; but five of them are of more note than the rest, namely, the Peneus, the Apidanus, the Onochonus, the Enipeus, and the Pamisus. These streams flow down from the mountains which surround Thessaly, and, meeting in the plain, mingle their waters together, and discharge themselves into the sea by a single outlet, which is a gorge of extreme narrowness. After the junction all the other names disappear, and the river is known as the Peneus. It is said that of old the gorge which allows the waters an outlet did not exist; accordingly the rivers, which were then as well as the Lake Boebeis, without names but flowed with as much water as at present, made Thessaly a sea. The Thessalians tell us that the gorge through which the water escapes was caused by Neptune; and this: is likely enough; at least any man who believes that Neptune causes earthquakes, and that chasms so produced are his handiwork, would say, upon seeing this rent, that Neptune did it. For it plainly appeared to me that the hills had been torn asunder by an earthquake.