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Rioni
Rioni River in Racha Region
Native name	რიონი (Georgian)
Location
Country	Georgia
Cities	Kutaisi Vani Samtredia Poti
Physical characteristics
Source	Main Caucasian Range Caucasus Mountains
Mouth	Black Sea
• location	Poti
• coordinates	42°11′3″N 41°38′10″E / 42.18417°N 41.63611°E / 42.18417; 41.63611
Length	327 km (203 mi)
Basin features
Tributaries
• left	Tekhuri, Qvirila
• right	Tskhenistsqali

The Rioni (Georgian: რიონი, Rioni; Ancient Greek: Φᾶσις, Phâsis) is the main river of western Georgia. It originates in the Caucasus Mountains, in the region of Racha and flows west to the Black Sea, entering it north of the city of Poti (near ancient Phasis). The city of Kutaisi, once the ancient city of Colchis, lies on its banks. It drains the western Transcaucasus into the Black Sea while the river Kura drains the eastern Transcaucasus into the Caspian Sea.

History

Ancient authors

Known to the ancient Greeks as the river Phasis, the Rioni was first mentioned by Hesiod in his Theogony (l.340); Plato has Socrates remark: "I believe that the earth is very large and that we who dwell between the pillars of Hercules and the river Phasis live in a small part of it about the sea, like ants or frogs about a pond" (Phaedo, 109a). 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. Herodotus and Anaximander considered Rioni a boundary between Europe and Asia. The famed voyage of Jason and the Argonauts, though semi-mythological, was said to have occurred by the Argonauts sailing up the river Phasis from its outlet to the Black Sea at Poti, to Colchis (modern Kutaisi in Georgia).

Pheasant

The term "pheasant" and the scientific name Phasianus colchicus are derived from "Phasis" and "Colchis", as this was said to be the region from which the common pheasant was introduced to Europe (the ring-necked pheasants were introduced later from East Asia).

Draining

It is said that "the failure of Colchis to emerge as a strong kingdom or to be maintained as a province of Rome has been blamed on the pestilential climate of the Phasis Valley, a situation remarked upon by travelers down to modern times, when the swamps were finally drained." Wetlands around Rioni River has been drained through a large reclamation-drainage project commissioned by government in 1960. After that, the area was cleared and converted to agricultural land.

Description

The Rioni is the longest river wholly within the borders of Georgia. The river is 327 kilometres (203 mi) long, and its drainage basin covers about 13,400 square kilometres (5,200 sq mi). It starts on the southern slopes of the Caucasus Mountains at 2,960 metres (9,710 ft) above sea level, north of the town Oni. Its largest tributaries are, from source to mouth: Jejora (left), Qvirila (left), Khanistsqali (left), Tskhenistsqali (right) and Tekhuri (right).

Phasis river at Taprobana

Stephanus of Byzantium wrote that there was also another river which was named Phasis, in Taprobana (Ancient Greek: Φᾶσις ἐν τῇ Ταπροβάνῃ) (Ceylon or Sri Lanka).

References

1. ^ Heinz Heinen, Andrea Binsfeld, Stefan Pfeiffer. Vom hellenistischen Osten zum römischen Westen. Wiesbaden, Germany: Franz Steiner Verlag, 2006, pg. 324 ISBN 3515087400
2. Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 113, 302. ISBN 978-1-4081-2501-4.
3. Oxford English Dictionary, Draft Revision, September 2009
4. Robert H. Hewsen, Armenia: A Historical Atlas, 2001, page 38
5. Tiefenbacher, John, ed. (2012). Perspectives on Nature Conservation Patterns, Pressures and Prospects. Rijeka, Croatia: IntechOpen. p. 66. ISBN 9789535100331.
6. Statistical Yearbook of Georgia: 2020, National Statistics Office of Georgia, Tbilisi, 2020, p. 12.
7. Stephanus of Byzantium, Ethnica, § Ph660.2

v t e Rivers of Georgia
Black sea basin	Abasha Bzipi Chorokhi Acharistsqali Enguri Khobi Chanistsqali Kodori Sakeni Natanebi Choloki Ochkhamuri Psou Rioni Qvirila Tekhuri Tskhenistsqali Supsa Bakhvistsqali
Caspian basin	Andi Koysu Mtkvari † Liakhvi Patsa Aragvi Iori Alazani Ksani Algeti Khrami Tergi ‡
Note: † also known as Kura ‡ also known as Terek List of rivers of Georgia (country)

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