The Permessus or Permessos ( grc, Περμησσός) was a stream rising in

Mount Helicon Mount Helicon ( grc, Ἑλικών; ell, Ελικώνας) is a mountain in the region of Thespiai in Boeotia, Greece, celebrated in Greek mythology. With an altitude of , it is located approximately from the north coast of the Gulf of Corint ...

, which, after uniting with the

Olmeius The Olmeius or Olmeios ( grc, Ὀλμειός) was a stream rising in Mount Helicon, which, after uniting with the Permessus, flowed into Lake Copais near Haliartus. William Martin Leake, visiting the site in the 19th century, regarded the Kefal� ...

, flowed into

Lake Copais Lake Copais, also spelled Kopais or Kopaida ( grc, Κωπαΐς; ell, Κωπαΐδα), was a lake in the centre of Boeotia, Greece, west of Thebes. It was drained in the late 19th century. It is now flat dry land and is still known as Kopaida. ...

near

Haliartus Haliartus or Haliartos (), also known as Ariartus or Ariartos or Hariartus or Hariartos (Ἀρίαρτος or Ἁρίαρτος), was a town of ancient Boeotia, and one of the cities of the Boeotian League. It was situated on the southern side of La ...

William Martin Leake William Martin Leake (14 January 17776 January 1860) was an English military man, topographer, diplomat, antiquarian, writer, and Fellow of the Royal Society. He served in the British military, spending much of his career in the Mediterrane ...

, visiting the site in the 19th century, regarded the Kefalári as the Permessus, and the river of Zagará as the Olmeius.

, ''Travels in Northern Greece'', vol. ii. p. 212. This river, apparently sacred to Apollo (patron deity of poets), is referred to in Propertius' poem (2.10.25-6) to Augustus, 'Nondum etenim Ascraeos norunt mea carmina fontes, Sed modo Permessi flumine lavit Amor.'

References

Geography of ancient Boeotia Rivers of Greece {{Greece-river-stub