The Rioni ( ka, რიონი ; , ) is the main river of western

Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...

. It originates in the

Caucasus Mountains The Caucasus Mountains * * Azerbaijani: , * * * * * * * * * * * is a mountain range at the intersection of Asia and Europe. Stretching between the Black Sea and the Caspian Sea, they are surrounded by the Caucasus region ...

, in the region of Racha and flows west to the

Black Sea The Black Sea is a marginal sea, marginal Mediterranean sea (oceanography), mediterranean sea lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bound ...

, entering it north of the city of

Poti Poti ( ka, ფოთი ; Mingrelian language, Mingrelian: ფუთი; Laz language, Laz: ჶაში/Faşi or ფაში/Paşi) is a port city in Georgia (country), Georgia, located on the eastern Black Sea coast in the mkhare, region of ...

(near ancient Phasis). The city of

Kutaisi Kutaisi ( ; ka, ქუთაისი ) is a city in the Imereti region of the Georgia (country), Republic of Georgia. One of the List of oldest continuously inhabited cities, oldest continuously inhabited cities in the world, it is the List o ...

, once the ancient city of

Colchis In classical antiquity and Greco-Roman geography, Colchis (; ) was an exonym for the Georgian polity of Egrisi ( ka, ეგრისი) located on the eastern coast of the Black Sea, centered in present-day western Georgia. Its population, the ...

, 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 The Caspian Sea is the world's largest inland body of water, described as the List of lakes by area, world's largest lake and usually referred to as a full-fledged sea. An endorheic basin, it lies between Europe and Asia: east of the Caucasus, ...

History

Ancient authors

Known to the

ancient Greeks Ancient Greece () was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity (), that comprised a loose collection of culturally and linguistically re ...

as the river ''Phasis'', the Rioni was first mentioned by

Hesiod Hesiod ( or ; ''Hēsíodos''; ) was an ancient Greece, Greek poet generally thought to have been active between 750 and 650 BC, around the same time as Homer.M. L. West, ''Hesiod: Theogony'', Oxford University Press (1966), p. 40.Jasper Gr ...

in his

Theogony The ''Theogony'' () is a poem by Hesiod (8th–7th century BC) describing the origins and genealogy, genealogies of the Greek gods, composed . It is written in the Homeric Greek, epic dialect of Ancient Greek and contains 1,022 lines. It is one ...

(l.340); Plato has Socrates remark: "I believe that the earth is very large and that we who dwell between the

pillars of Hercules The Pillars of Hercules are the promontory, promontories that flank the entrance to the Strait of Gibraltar. The northern Pillar, Calpe Mons, is the Rock of Gibraltar. A corresponding North African peak not being predominant, the identity of ...

and the river Phasis live in a small part of it about the sea, like ants or frogs about a pond" (''

Phaedo ''Phaedo'' (; , ''Phaidōn'') is a dialogue written by Plato, in which Socrates discusses the immortality of the soul and the nature of the afterlife with his friends in the hours leading up to his death. Socrates explores various arguments fo ...

'', 109a). Later writers like

Apollonius Rhodius Apollonius of Rhodes ( ''Apollṓnios Rhódios''; ; fl. first half of 3rd century BC) was an ancient Greek author, best known for the ''Argonautica'', an epic poem about Jason and the Argonauts and their quest for the Golden Fleece. The poem is ...

(

Argonautica The ''Argonautica'' () is a Greek literature, Greek epic poem written by Apollonius of Rhodes, Apollonius Rhodius in the 3rd century BC. The only entirely surviving Hellenistic civilization, Hellenistic epic (though Aetia (Callimachus), Callim ...

2.12.61),

Virgil Publius Vergilius Maro (; 15 October 70 BC21 September 19 BC), usually called Virgil or Vergil ( ) in English, was an ancient Rome, ancient Roman poet of the Augustan literature (ancient Rome), Augustan period. He composed three of the most fa ...

(

Georgics The ''Georgics'' ( ; ) is a poem by Latin poet Virgil, likely published in 29 BCE. As the name suggests (from the Greek language, Greek word , ''geōrgiká'', i.e. "agricultural hings) the subject of the poem is agriculture; but far from bei ...

4.367) and

Aelius Aristides Publius Aelius Aristides Theodorus (; 117–181 AD) was a Greek orator and author considered to be a prime example as a member of the Second Sophistic, a group of celebrated and highly influential orators who flourished from the reign of Nero unt ...

(''Ad Romam'' 82) considered it the easternmost limit of the

navigable A body of water, such as a river, canal or lake, is navigable if it is deep, wide and calm enough for a water vessel (e.g. boats) to pass safely. Navigability is also referred to in the broader context of a body of water having sufficient under ...

seas.

Herodotus Herodotus (; BC) was a Greek historian and geographer from the Greek city of Halicarnassus (now Bodrum, Turkey), under Persian control in the 5th century BC, and a later citizen of Thurii in modern Calabria, Italy. He wrote the '' Histori ...

and

Anaximander Anaximander ( ; ''Anaximandros''; ) was a Pre-Socratic philosophy, pre-Socratic Ancient Greek philosophy, Greek philosopher who lived in Miletus,"Anaximander" in ''Chambers's Encyclopædia''. London: George Newnes Ltd, George Newnes, 1961, Vol. ...

considered Rioni a boundary between Europe and Asia. The famed voyage of

Jason Jason ( ; ) was an ancient Greek mythological hero and leader of the Argonauts, whose quest for the Golden Fleece is featured in Greek literature. He was the son of Aeson, the rightful king of Iolcos. He was married to the sorceress Med ...

and the

Argonauts The Argonauts ( ; ) were a band of heroes in Greek mythology, who in the years before the Trojan War (around 1300 BC) accompanied Jason to Colchis in his quest to find the Golden Fleece. Their name comes from their ship, ''Argo'', named after it ...

, 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

in Georgia).

Pheasant

The term "

pheasant Pheasants ( ) are birds of several genera within the family Phasianidae in the order Galliformes. Although they can be found all over the world in introduced (and captive) populations, the pheasant genera's native range is restricted to Eura ...

" and the scientific name ''

Phasianus colchicus The common pheasant (''Phasianus colchicus''), ring-necked pheasant, or blue-headed pheasant, is a bird in the pheasant family (biology), family (Phasianidae). The genus name comes from Latin ''phasianus'' 'pheasant'. The species name ''colchic ...

'' 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 pheasant The common pheasant (''Phasianus colchicus''), ring-necked pheasant, or blue-headed pheasant, is a bird in the pheasant family (Phasianidae). The genus name comes from Latin ''phasianus'' 'pheasant'. The species name ''colchicus'' is Latin for ...

s were introduced later from

East Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...

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 long, and its

drainage basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

covers about . It starts on the southern slopes of the Caucasus Mountains at above sea level, north of the town of

Oni An ( ) is a kind of ''yōkai'', demon, orc, ogre, or troll in Japanese folklore. They are believed to live in caves or deep in the mountains or in hell. Oni are known for their superhuman strength and have been associated with powers like th ...

. 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 Stephanus or Stephen of Byzantium (; , ''Stéphanos Byzántios''; centuryAD) was a Byzantine grammarian and the author of an important geographical dictionary entitled ''Ethnica'' (). Only meagre fragments of the dictionary survive, but the epit ...

wrote that there was also another river which was named Phasis, in

Taprobana Taprobana (; ), Trapobana, and Taprobane (, ) was the name by which the Indian Ocean island of Sri Lanka was known to the Ancient Greece, ancient Greeks. Tabrobane is suggested to be derived from Sanskrit "Tamraparni". This name could be a ref ...

(), as the Indian Ocean island of Ceylon or Sri Lanka was known to the ancient Greeks.Stephanus of Byzantium, Ethnica, § Ph660.2
/ref>

References

Rivers of Georgia (country) Tributaries of the Black Sea {{Georgia-river-stub