The Rioni River (Georgian რიონი) is the principal river of western Georgia. It originates in the Caucasus Mountains, in the region of Racha and flows west to the Black Sea. It enters the Black Sea north of the city of Poti. The city of Kutaisi, once the capital of ancient Colchis, lies on its banks. The River Thames in London River running into Harrietville Trout Farm A river is a large natural waterway. ... The Caucasus Mountains are a mountain system between the Black and Caspian seas in the Caucasus region, usually considered the southeastern limit of Europe. ... Racha (Ratcha is a more correct spelling) (Georgian: რაჭა, Rača) is a historic province in Georgia, in the mountainous northwestern part of the country. ... Map of the Black Sea. ... Map of the Black Sea. ... Poti is a city in the Samegrelo province in the west of the Republic of Georgia. ... Kutaisi (Georgian: ; ancient names: Aea/Aia, Kutatisi, Kutaïssi ) is Georgias second largest city in the western province of Imereti. ... In ancient geography, Colchis (sometimes spelled also as Kolchis) (Greek: Κολχίς, kŏl´kĬs; Georgian: კოლხეთი, Kolkheti) was a nearly triangular district in Caucasus. ...

Known to the ancient Greeks as the Phasis River (Greek: Φάσις), it was first mentioned by Hesiod in his Theogony (l.340); later writers like Apollonius Rhodius (Argonautica 2.12.61), Virgil (Georgics 4.367) and Aelius Aristides (Ad Romam 82) considered it the easternmost limit of the navigable seas. Socrates, in Phaedo refered to the portion of the world he knew of as between the Pillars of Hercules and the River Phasis. Ancient Greece is the period in Greek history which lasted for around one thousand years and ended with the rise of Christianity. ... Hesiod (Hesiodos, ), the early Greek poet and rhapsode, presumably lived around 700 BCE. Historians have debated the priority of Hesiod or of Homer, and some authors have even brought them together in an imagined poetic contest. ... Apollonius of Rhodes (Apollonius Rhodius), librarian at Alexandria, was a poet, the author of Argonautica, a literary epic retelling of ancient material concerning Jason and the Argonauts quest for the Golden Fleece in the mythic land of Colchis. ... A sculpture of Virgil, probably from the 1st century AD. For other uses, see Virgil (disambiguation). ... Aelius Aristides (AD 117 - 181) was a Greek orator during the Roman Empire, son of a wealthy land-owner, and considered an example of the Second Sophistic. ... A river or canal is Navigatable if the water is deep and wide enough, and not flowing too fast. ...