In ancient times, the river was regarded as the boundary between Greater Iran and Turan.
Name origin: Named for city of Āmul (now Turkmenabat)
Countries:Afghanistan, Tajikistan, Turkmenistan, Uzbekistan - Region:Central Asia
- left Panj River
- right Vakhsh River, Surkhan Darya, Sherabad River, Zeravshan River
Primary source: Pamir River/Panj River - location: Lake Zorkul,
Pamir Mountains, Tajikistan
Secondary source: Kyzyl-Suu/Vakhsh River - location: Alay Valley, Pamir Mountains, Kyrgyzstan
Source confluence: Kerki
Mouth Aral Sea - location: Amudarya Delta, Uzbekistan
Length 2,400 km (1,491 mi)
The Chinese-Russian border or the Sino-Russian border is the international border between China and Russia. It is the world's sixth-longest international border It starts at the eastern China-Mongolia-Russia tripoint and runs north-east, followed by south-east along the Argun and Amur rivers, and finally south-west along the Tumen River to the border with North Korea at, only a few kilometres before the river flows into the Pacific Ocean
Name origin: Mongolian: amur, "rest")
Countries: Russia, China
Tributaries : Part of Strait of Tartary
- left Shilka, Zeya, Bureya, Amgun
- right Ergune, Huma, Songhua, Ussuri
Cities: Blagoveschensk, Heihe, Tongjiang, Khabarovsk, Amursk, Komsomolsk-on-Amur, Nikolayevsk-on-Amur
Primary source: Onon River-Shilka River- location: Khan Khentii Strictly Protected Area, Khentti Province, Mongolia
Secondary source: Kherlen River-Ergune River - location: about 195 kilometres (121 mi) from Ulaanbaatar, Khentii Province, Mongolia
Source confluence - location: Near Pokrovka, Russia & China
Mouth: Strait of Tartary- location: Near Nikolaevsk-on-Amur, Khabarovsk Krai, Russia
Length 2,824 km (1,755 mi)
A tributary of the Narew River, the Bug forms part of the border between Ukraine and Poland for 185 kilometres (115 mi), and between Belarus and Poland for 178 kilometres (111 mi), and is the fourth longest Polish river.
Countries: Poland, Belarus, Ukraine- Voivodeship Podlaskie, Mazovian, Lublin, Voblast Brest, Oblast Lviv
Source : - location: near Verkhobuzh, Lviv Oblast, Ukraine
Mouth - location: Narew River near Serock, Poland
Length 772 km (480 mi)
Discharge elsewhere - Wyszkow
Left bank Tributaries: Poltva, Bukowa, Huczwa, Uherka, Włodawka, Krzna, Toczna, Liwiec, Kałamanka, Janów Podlaski, Uherka,
Right bank Tributaries: Sołokija, Ług, Mukhavets, Leśna (Leśna Prawa, Leśna Lewa), Nurzec, Brok, Warenzhanka
Bug River is a left tributary of the Narew river which flows from central Ukraine to the west, passing along the Ukraine-Polish and Polish-Belarusian border and into Poland, where it follows part of the border between the Masovian and Podlaskie Voivodeships. It joins the Narew river at Serock, a few kilometers upstream of the artificial Zegrze Lake.
It is connected with the Dnieper River via the Mukhavets River, a right-bank tributary, by the Dnieper-Bug Canal.
On the Bug River, a few kilometers from the Vysokaye in Kamenets District of the Brest Region, is the westernmost point of Belarus.
Countries Kazakhstan, Kyrgyzstan
- left: Ala-Archa River, Kara-Balta River, Ysyk-Ata River, Alamudun River, Ak-Suu River
- right: Chong-Kemin River, Kichi-Kemin River
Source: confluence of Joon Aryk and Kochkor River (in Kochkor District of Naryn Province)
Mouth: Akjaykyn system of lakes
As the Chu flows through the Chuy Valley, it forms the border between Kyrgyzstan and Kazakhstan for more than a hundred kilometers, but then it leaves Kyrgyzstan and flows into Kazakhstan, where, like many other rivers and streams that drain northern Kyrgyzstan it eventually disappears in the steppe, short of reaching the Syr Darya, into which it would drain in wet years.
A river in northern Kyrgyzstan and southern Kazakhstan. At approximately 663 miles (1067 km) in length, it is one of the longest rivers in Kyrgyzstan. Chuy Oblast, the northernmost and most populous administrative region of Kyrgyzstan.
Lake Mead on the Arizona-Nevada line- Arizona-Nevada and Arizona-California borders.
Countries: United States, Mexico
States: Colorado, Utah, Arizona, Nevada, California (U.S.), Baja California (Mexico), Sonora
- left: Fraser River, Blue River, Eagle River, Roaring Fork River, Gunnison River, Dolores River, San Juan River, Little Colorado River, Bill Williams River, Gila River
- right: Green River, Dirty Devil River, Escalante River, Kanab River, Virgin River
Cities: Glenwood Springs, CO, Grand Junction, CO, Moab, UT, Page, AZ, Bullhead City, AZ, Lake Havasu City, AZ, Yuma, AZ (U.S.), San Luis Rio Colorado, SON (Mexico)
Source: La Poudre Pass - location: Rocky Mountains, Colorado, United States
Mouth: Gulf of California-location: Colorado River Delta, Baja California-Sonora, Mexico
Length 1,450 mi (2,334 km)
Border between Dem. Rep. of the Congo and Rep. of the Congo
Countries Angola, Burundi, Cameroon, Central African Republic, Congo-Kinshasa, Gabon, Congo-Brazzaville, Rwanda, Tanzania, Zambia
Source: of the Congo are in the highlands and mountains of the East African Rift, as well as Lake Tanganyika and Lake Mweru, (which feed the Lualaba River, which then becomes the Congo below Boyoma Falls.) The Chambeshi River in Zambia is generally taken as the source of the Congo in line with the accepted practice worldwide of using the longest tributary, as with the Nile River.
Mouth: Atlantic Ocean
Length 4,700 km (2,920 mi)
Tributaries: Sorted in order from the mouth heading upstream.
Lower Congo : Downstream of Kinshasa, there are no important tributaries. Inkisi
Middle Congo: Kwa-Kassai (left) - Fimi,(Lukenie), Kwango, Sankuru, Lefini (right), Sangha (right) - (Kadéï),Ubangi/ (right) -(Mbomou, Uele), Tshuapa River (left) -,Lomami River (left) -
Upper Congo: Upstream of Boyoma Falls near Kisangani, the river Congo is known as the Lualaba River. :Luvua, (Luapula), Chambeshi
The river and its tributaries flow through the Congo rainforest, the second largest rain forest area in the world, second only to the Amazon Rainforest in South America. The river also has the second-largest flow in the world, behind the Amazon; the third-largest drainage basin of any river, behind the Amazon and Plate rivers; and is one of the deepest rivers in the world, at depths greater than 220 m (720 ft).Because its drainage basin includes areas both north and south of the equator, its flow is stable, as there is always at least one part of the river experiencing a rainy season
Countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, Ukraine
Cities: Ulm, Ingolstadt, Regensburg, Linz, Vienna, Bratislava, Győr, Budapest, Dunaújváros, Vukovar, Novi Sad, Zemun, Pančevo, Belgrade, Drobeta Turnu-Severin, Vidin
Primary source: Breg - location: Martinskapelle, Black Forest, Germany - length 2,860 km (1,777 mi)
Secondary source: Brigach - location: St. Georgen, Black Forest, Germany - length 2,860 km (1,777 mi)
Source confluence: - location: it originates in the town of Donaueschingen—which is in the Black Forest of Germany—at the confluence of the rivers Brigach and Breg.
Mouth - Danube Delta- emptying into the Black Sea via the Danube Delta in Romania and Ukraine
Length 2,860 km (1,777 mi)
Discharge elsewhere (average) - Passau - 30km before town - Vienna - Budapest- Belgrade
List of Tributaries:
1. Iller (entering at Ulm) 2. Lech 3. Altmühl (entering at Kelheim) 4. Naab (entering at Regensburg) 5. Regen (entering at Regensburg) 6. Isar 7. Inn (entering at Passau) 8. Enns 9. Morava (entering near Devín Castle) 10. Rába (entering at Győr) 11. Váh (entering at Komárno) 12. Hron (entering at Štúrovo) 13. Ipeľ 14. Sió 15. Dráva 16. Vuka (entering at Vukovar) 17. Tisza 18. Sava (entering at Belgrade) 19. Timiș (entering at Pančevo) 20. Great Morava 21. Caraș 22. Jiu (entering at Bechet) 23. Iskar 24. Olt (entering at Turnu Măgurele) 25. Osam 28. Argeș (entering at Oltenița) 29. Ialomița 30. Siret (entering near Galați) 31. Prut (entering near Galați)
Detroit River is a strait in the Great Lakes system. The name comes from the French Rivière du Détroit, which translates literally as River of the Strait.
Countries: United States, Canada
State: Michigan & Province: Ontario
- left: Little River, River Canard
- right: River Rouge, Ecorse River
Cities: United States: Detroit, Grosse Pointe Park, River Rouge, Ecorse, Wyandotte, Riverview, Trenton, Grosse Ile, Gibraltar, Canada: Tecumseh, Windsor, La Salle, Amherstburg
Source:Lake St. Clair
Mouth: Lake Erie
Length 28 mi (45 km)
Countries: Italy, Austria, Slovenia, Croatia, Hungary
- left: Wąsawa
The Gail in Austria, the Meža and Dravinja in Slovenia, and the Bednja in Croatia from the south, as well as the Gurk and the Lavant in Austria, and the Mur (near Legrad) in Croatia from the north are its main tributaries.
Cities: Lienz, Spittal an der Drau, Villach, Ferlach, Dravograd, Vuzenica, Muta, Ruše, Maribor, Ptuj, Ormož, Varaždin, Osijek, Barcs
Source: North of the Neunerkogel over the Toblacher Feld - location: Toblach, South Tyrol, Italy. The Drava (along with one of its tributaries the Slizza) and the Spöl are the only two rivers originating in Italy that belong to the Danube drainage basin. It is the fourth longest Danube tributary.
Mouth: Danube near Osijek
Length 707 km (439 mi)
A trans-boundary river of Asia which flows through India and Bangladesh
Countries: India, Bangladesh
States: Uttarakhand, Uttar Pradesh, Bihar, Jharkhand, West Bengal
- left: Ramganga, Gomti, Ghaghara, Gandaki, Burhi Gandak, Koshi, Mahananda
- right: Yamuna, Tamsa, Son, Punpun, Betwa, Chambal, Tons, Ken, Sindh, Hindon, Sharda
Cities: Haridwar, Kanpur, Jajmau, Allahabad, Varanasi, Mirzapur, Ghazipur, Patna, Rishikesh, Munger, Bhagalpur, Baharampur, Kolkata, Bijnor
Source: Gangotri Glacier, Satopanth Glacier, Khatling Glacier, and waters from melted snow from such peaks as Nanda Devi, Trisul, Kedarnath, Nanda Kot, and Kamet. - location: Uttarakhand, India
The Ganges begins at the confluence of the Bhagirathi (which rises at the foot of Gangotri Glacier, at Gaumukh) and Alaknanda rivers at Devprayag. The six headstreams are the Alaknanda, Dhauliganga, Nandakini, Pindar, Mandakini, and Bhagirathi rivers.
Mouth: Ganges Delta - location: Bay of Bengal, Bangladesh & India
Length 2,525 km (1,569 mi)
Discharge: for Farakka Barrage
Discharge elsewhere (average) - Bay of Bengal
It is the third largest river by discharge.
The Ganges was ranked as the fifth most polluted river of the world in 2007.
Countries Bolivia(Iténez River), Brazil(Guaporé River)
- left: Alegre River, Verde River, Paragúa River, Río Blanco, Machupo River
- right: Guatire River, Branco River, Corumbiara River, Colorado River, Massaco River, Cabixi River
Source: Parecis plateau - location: Mato Grosso, Brazil
Mouth: Mamoré River - location: Brazil/Bolivia--part of the Madeira River basin, which eventually empties into the Amazon River. The Guaporé River crosses the eastern part of the Beni savanna region
Length 1,210 km (750 mi)
Countries Brazil, Argentina
Part of Paraná River basin
- left Rio Negro (Iguazu), Rio Xopim
- right Rio de Areia
Cities Curitiba, Campo Largo, Paraná, Foz do Iguaçu
Landmark Iguazu Falls
Source: Serra do Mar costal mountains - location: Near Curitiba, Paraná, Brazil
Mouth: Paraná River - location: Foz do Iguaçu, Misiones Province and Paraná, border between Argentina and Brazil
It empties into the Paraná River at the point where the borders of Argentina, Brazil, and Paraguay join, an area known as the Triple Frontier.
Length 1,320 km (820 mi), East-west
Israel and Palestine border the river to the west, while the Golan Heights and Jordan lie to its east.
Name origin: Hebrew: (yardén, descender)(yarad, to descend)
Country Israel, Jordan, Palestine
Regions West Asia, Eastern Mediterranean littoral
- left Banias River, Dan River, Yarmouk River, Zarqa River
- right Hasbani or Snir River (Lebanon and Israel), Iyon/Ayun Stream (Lebanon and Israel)
Landmarks Sea of Galilee, Dead Sea
Source : - location; Anti-Lebanon Mountain Range at Mount Hermon, Golan Heights
Mouth: Dead Sea
Length 251 km (156 mi)
The river has a major significance in Judaism and Christianity and, to a more moderate degree, Islam, as the site where the Israelites crossed into the Promised Land and where Jesus of Nazareth was baptised by John the Baptist.
The streams coming together to create the River Jordan in its upper basin are, west to east:
1. The Ayun which flows from Lebanon.
2. The Hasbani which flows from Mount Lebanon.
3. The Dan whose source is also at the base of Mount Hermon.
4. The Banias arising from a spring at Banias at the foot of Mount Hermon.
South of the Sea of Galilee it receives the waters of further tributaries, the main ones being:The Yarmouk River, The Zarqa River
The Kupa (Croatian) or Kolpa (Slovene, from Latin: Colapis in Roman times) river, a right tributary of the Sava, forms a natural border between north-west Croatia and southeast Slovenia. It is 297 kilometres (185 miles) long, with its border part having a length of 118 km (73 mi) and the rest located in Croatia
Origin: Razloge, in the mountainous region of Gorski Kotar, northeast of Rijeka, in the area of Risnjak National Park, Croatia
Mouth: Sava River, Sisak (town), Croatia
Basin countries: Croatia, Slovenia
Length 297 km (185 mi)
It serves as a border for about 640 km (398 mi), separating South Africa to the southeast from Botswana to the northwest and Zimbabwe to the north.
Countries: South Africa, Botswana, Zimbabwe, Mozambique
Source: confluence Marico and Crocodile - location: Botswana/South Africa border
Mouth: Indian Ocean - location; Gaza Province, Mozambique
Length 1,750 km (1,087 mi)
The Limpopo is the second largest river in Africa that drains to the Indian Ocean, after the Zambezi River.
The first European to sight the river was Vasco da Gama, who anchored off its mouth in 1498 and named it Espiritu Santo River.
The Notwane River is a major tributary of the Limpopo, rising on the edge of the Kalahari Desert in Botswana and flowing in a north-easterly direction.
In the north-eastern corner of South Africa the river borders the Kruger National Park.
Left hand: Notwane River, Bonwapitse River, Mahalapswe River, Lotsane River, Motloutse River, Shashe River, Umzingwani River, Bubi River, Mwenezi River, Changane River
Right hand: Marico River, Crocodile River, Matlabas River, Mokolo River, Palala River, Mogalakwena River, Kolope River, Sand River (Limpopo), Nwanedi River, Luvuvhu River, Olifants River (Limpopo)
The river rises near Amsterdam, Mpumalanga, South Africa, and flows through Swaziland in an easterly direction, where it enters the Lebombo Mountains. The 13-kilometre gorge forms the boundary between Swaziland and South Africa. For approximately twenty kilometres, it forms the border between South Africa (province of KwaZulu-Natal) and Mozambique.
Countries: South Africa, Swaziland, Mozambique
Source: - location: Amsterdam, Mpumalanga, South Africa
Mouth: Indian Ocean - location: Maputo Province, Mozambique ( in the Ndumo Game Reserve, it absorbs its largest tributary, the Pongola River. It then meanders through the Mozambican coastal plain and empties into southern Maputo Bay, some 85 kilometres downstream.)
From the origin to its mouth, in order, tributaries are the: Seganagana, Bonnie Brook, Mpuluzi, Buhlungu, Umvenvane, Lusushwana, Sidvokodvo, Mhlamani, Mzimneni, Mzimphofu, Mhlathuzane, Mtsindzekwa, Mhlatuze, Nyetane, Funuane, and the Pongola Rivers.
The Mekong then meets the tripoint of China, Burma (Myanmar) and Laos. From there it flows southwest and forms the border of Burma and Laos for about 100 km (62 mi) until it arrives at the tripoint of Burma, Laos, and Thailand. This is also the point of confluence between the Ruak River (which follows the Thai-Burma border) and the Mekong. The area of this tripoint is sometimes termed the Golden Triangle, although the term also refers to the much larger area of those three countries that is notorious as a drug producing region.
Countries: China, Burma, Laos, Thailand, Cambodia, Vietnam
- left: Nam Khan, Tha, Nam Ou
- right: Mun, Tonle Sap, Kok, Ruak
Source: Lasagongma Spring - location: Mt. Guozongmucha, Zadoi, Yushu Tibetan Autonomous Prefecture, Qinghai, China
Mouth: Mekong Delta
Discharge:for South China Sea
Length 4,350 km (2,703 mi)
The Mekong rises as the Za Qu and soon becomes known as the Lancang (Lantsang) in the "Three Rivers Source Area" on the Tibetan Plateau in the Sanjiangyuan National Nature Reserve; the reserve protects the headwaters of, from north to south, the Yellow (Huang He), the Mekong, and the Yangtze Rivers.
Three Parallel Rivers Area in the Hengduan Mountains, along with the Yangtze to its east and the Salween River (Nujiang in Chinese) to its west.
The Moei River forms the natural border line between Thailand and Burma.
Countries: Thailand, Burma
States: Tak Province, Mae Hong Son Province
Districts: Phop Phra, Mae Sot, Mae Ramat, Tha Song Yang, Sop Moei
Tributaries - right: Yuam River
City: Mae Sot
Source: - location: Thanon Thongchai Range, Tak Province, Thailand
Mouth: Salween River: - location: Sop Moei, Mae Hong Son Province, Thailand
Length 327 km (203 mi)
Unlike most rivers in Thailand the Moei River flows north in a northwest direction.
The river banks often the scenario of clashes between the Tatmadaw and Karen militias.
The Oder (Czech and Polish: Odra) is a river in Central Europe. It rises in the Czech Republic and flows (generally north- and northwest-ward) through western Poland, later forming 187 kilometres (116 mi) of the border between Poland and Germany, part of the Oder-Neisse line. The river ultimately flows into the Szczecin Lagoon north of Szczecin and then into three branches (the Dziwna, Świna and Peene) that empty into the Gulf of Pomerania of the Baltic Sea.
Countries: Czech Republic, Poland, Germany
Source: - location: Fidlův kopec, Oderské vrchy, Nízký Jeseník, Olomouc District, Olomouc Region, Moravia, Czech Republic
Mouth: Szczecin Lagoon - location: Baltic Sea, Poland
Length 854 km (531 mi)
Countries: Venezuela, Colombia
Source: - location: Cerro Delgado-Chalbaud, Parima Mountains, Venezuela (near the Venezuelan-Brazilian border)
Mouth: Delta Amacuro: - location:Atlantic Ocean, Venezuela
Length 2,140 km (1,330 mi)
The course of the Orinoco forms a wide ellipsoidal arc, surrounding the Guiana Shield; it is divided in four stretches of unequal length that roughly correspond to the longitudinal zonation of a typical large river:
Upper Orinoco— 242km (150 mi) long, from its headwaters to the rapids Raudales de Guaharibos, flows through mountainous landscape in a northwesterly direction
Middle Orinoco— 750 km(470 mi) long, divided into two sectors, the first of which ca. 480km (300 mi) long has a general westward direction down to the confluence with the Atabapo and Guaviare rivers at San Fernando de Atabapo; the second flows northward, for about 270 km (170 mi), along the Venezuelan - Colombian border, flanked on both sides by the westernmost granitic upwellings of the Guiana Shield which impede the development of a flood plain, to the Atures rapids near the confluence with the Meta River at Puerto Carreño,
Lower Orinoco— 959km(596 mi) long with a well-developed alluvial plain, flows in a northeast direction, from Atures rapids down to Piacoa in front of Barrancas
Delta Amacuro— 200km(120 mi) long that empties into the Gulf of Paría and the Atlantic Ocean, a very large delta, 370 kilometres (230 mi) at its widest.
From the city of Puerto Bahia Negra, Paraguay, the river forms the border between Paraguay and Brazil, flowing almost due south before the confluence with the Apa River.
flowing through the middle of Paraguay, at the confluence with the Pilcomayo River and passing the Paraguayan capital city, Asunción, the river forms the border with Argentina.
Countries: Paraguay, Brazil, Argentina, Bolivia
- left: Rio Negro, Miranda River, Cuiabá River, Apa River, Tebicuary River
- right: Jauru River, Pilcomayo River, Bermejo River
Source: - location: Parecis plateau, Mato Grosso, Brazil
Mouth: confluence with the Paraná River north of Corrientes
Length 2,621 km (1,629 mi)
flowing through the Pantanal wetlands, the city of Corumbá, and then running close to the Brazil-Bolivia border for a short distance in the Brazilian states of Mato Grosso and Mato Grosso do Sul
For approximately the next 200 km (120 mi) the Paraná flows southward and forms a natural boundary between Paraguay and Brazil until the confluence with the Iguazu River.
Countries: Argentina, Brazil, Paraguay
Region: Mesopotamia, Argentina
Primary source: Paranaíba River:-location:Rio Paranaíba, Minas Gerais, Brazil
Secondary source:Rio Grande: - location: Bocaina de Minas, Minas Gerais, Brazil
Source confluence: Paranaíba and Grande
Mouth: Rio de la Plata: - location:Atlantic Ocean, Argentina
Length 4,880 km (3,032 mi)
It is second in length only to the Amazon River among South American rivers . The name Paraná is an abbreviation of the phrase "para rehe onáva", which comes from the Tupi language and means "like the sea" (that is, "as big as the sea")
the river is dammed by the Itaipu Dam, the second largest hydroelectric power station in the world (after the Three Gorges Dam in the People's Republic of China)
is the estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay, , with the major ports and capital cities of Buenos Aires and Montevideo on its western and northern shores, respectively. The coasts of the Río de la Plata are the most densely populated areas of Argentina and Uruguay. It is a funnel-shaped indentation on the southeastern coastline of South America, about 290 kilometres (180 mi) long.
Name origin: Spanish, "river of silver"
Countries: Argentina, Uruguay
- left: Uruguay River, San Juan River, Santa Lucía River
- right; Paraná River, Luján River, Salado River
Cities: La Plata, Buenos Aires, Montevideo, San Fernando, San Isidro, Vicente López, Avellaneda, Quilmes, Berazategui, Hudson, Punta Lara, Atalaya, San Clemente del Tuyú, Ciudad del Plata, Ciudad de la Costa, Colonia del Sacramento
Source: confluence of Paraná and Uruguay Rivers
Mouth: Atlantic Ocean : - location: Argentine Sea, Argentina & Uruguay
Length 290 km (180 mi) 4,876 km including the Paraná
The Rainy River (French: Rivière à la Pluie; Ojibwe: Gojiji-ziibi) is a river, approximately 137 kilometres (85 mi) long, which forms part of the U.S.-Canada border separating northern Minnesota and Northwestern Ontario.
It issues from the west side of Rainy Lake (French: lac à la Pluie; Ojibwe: Gojiji-zaaga'igan) and flows generally west-northwest, between International Falls, Minnesota, and Fort Frances, Ontario, and between Baudette, Minnesota, and Rainy River, Ontario. It enters the southern end of Lake of the Woods approximately 19 kilometres (12 mi) northwest of Baudette/Rainy River.
forms part of the Swiss-Austrian, Swiss- Liechtenstein border, Swiss-German and then the Franco-German border
Name origin: Celtic Rēnos
Countries: Germany, Austria, Switzerland, France, Netherlands, Liechtenstein
Rhine Basin: Luxembourg, Belgium, Italy
Primary source: Vorderrhein:-location: Tomasee ("Lai da Tuma"), Surselva, Graubünden, in the southeastern Swiss Alps, Switzerland
Secondary source: Hinterrhein- location: Paradies Glacier, Graubünden, Switzerland
Source confluence: Reichenau- location: Tamins, Graubünden, Switzerland
Mouth: North Sea - location: Hoek van Holland, Rotterdam, Netherlands
Length 1,230 km (764 mi)
It is the second longest river in Central and Western Europe (after the Danube)
The river serves as a natural border between the U.S. state of Texas and the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas. A very short stretch of the river serves as the boundary between the U.S. states of Texas and New Mexico.
Countries:United States, Mexico
States: Colorado, New Mexico, Texas, Chihuahua, Coahuila, Nuevo León, Tamaulipas
- left; Red River, Rio Hondo, Rio Pueblo de Taos, Embudo River, Santa Fe River, Galisteo Creek, Alamito Creek, Terlingua Creek, Pecos River, Devils River
- right; Conejos River, Rio Chama, Rio Conchos, Rio Salado, Rio Alamo, San Juan River
Source: Canby Mountain, Continental Divide- location: San Juan Mountains, Rio Grande National Forest, Colorado, United States
Mouth: Gulf of Mexico- location: Cameron County, Texas; Matamoros, Tamaulipas
Length 1,896 mi (3,051 km)
Ruvuma River, formerly also known as the Rovuma River, is a river in the African Great Lakes region. During the greater part of its course, it forms the border between Tanzania and Mozambique (in Mozambique known as Rio Rovuma).
The lower Ruvuma river is formed by the junction of two branches of nearly equal importance, the longer of which, the Lujenda, comes from the south-west, the other, which still bears the name Ruvuma, from the west. Its source lies on an undulating plateau, 1,000 m (3,300 ft) high, immediately to the east of Lake Nyasa.
Unity Bridge across the river between Mozambique and Tanzania
The mouth is near the boundary near the coast
Along its upstream reaches, the river forms part of the border between Rwanda on the east with the Democratic Republic of the Congo (DRC) on the west.
Further downstream, it forms part of the border between the DRC and Burundi, and its lowermost reach lies entirely within Burundi
Country: DR Congo (DRC), Rwanda, Burundi
Source: Lake Kivu- location: border between Bukavu and Cyangugu, South Kivu, DRC & Western Province, Rwanda
Mouth: Lake Tanganyika- location:west of Bujumbura, Burundi, Bujumbura Rural Province. The Ruzizi River, flowing south into Lake Tanganyika, is part of the upper watershed of the Congo River.
Length 117 km (73 mi)
Its central part is a natural border of Bosnia-Herzegovina and Croatia. The Sava forms the northern border of the Balkan Peninsula, and southern edge of the Pannonian Plain.
Countries: Slovenia, Croatia, Bosnia-Herzegovina, Serbia
- left: Savinja, Sutla, Krapina, Lonja, Ilova-Trebež, Orljava, Bosut
- right: Ljubljanica, Krka, Kupa, Una, Vrbas, Ukrina, Bosna, Tinja, Drina, Kolubara
Cities: Kranj, Ljubljana, Zagreb, Sisak, Slavonski Brod, Brčko, Sremska Mitrovica, Šabac, Obrenovac, Belgrade
Source: Zelenci- location: Kranjska Gora, Slovenia
Mouth: Danube- location: Belgrade, Serbia
Length 990 km (615 mi)
India's border with China's Tibet Autonomous Region follows this watershed. Below Kalapani the river has been Nepal's western border with India since the Sugauli Treaty concluding the Anglo-Nepalese War of 1814-16.
Origin: The traditional source of the (Maha)Kali is the pond of the Kali temple at Kalapani in Pithoragarh District Uttarakhand, India. The geographic sources, however, are some five kilometers further north and some thousand metres higher: streams emerging from glaciers along the watershed with the uppermost Humla Karnali.
Mouth: Ghaghara River, Uttar Pradesh
Progression: Rises along Ganges-Yarlung Tsangpo watershed and flows south through Himalaya, Lesser Himalaya, Jogbudha Valley, Siwaliks and Terai, then SE across plains to join Ghaghara River, a tributary of the Ganges.
Basin countries: Nepal (Mahakali Zone); India states Uttarakhand and Uttar Pradesh
Length 350 kilometres (220 mi)
River system : Ganges
Left tributaries: (Nepal) Chameliya, Ramgun
Right tributaries: (Uttarakhand) Kuti, Dhauli, Gori, Sarju, Ladhiya
Notable national parks are the Shuklaphanta Wildlife Reserve in Nepal and Dudhwa National Park in India.Another reserve area "Kishunpur Pashu Vihar" sanctuary located about 30 km from Dudhwa. In 1987 Dudhwa National Park and Kishunpur Pashu Vihar were merged to form the Dudhwa Tiger Reserve (DTR).
The twin cities of Sault Ste. Marie, Ontario, and Sault Ste. Marie, Michigan are connected across the St. Marys River by the Sault Ste. Marie International Bridge. The St. Marys Rapids are just below the river's exit from Lake Superior and can be bypassed through the Soo Locks and the Sault Ste. Marie Canal.
Countries: Canada, United States
Province/State: Ontario, Michigan
Cities: United States: Bay Mills, De Tour, Sault Ste. Marie, Soo, Sugar Island, Canada: Bruce Mines, Echo Bay, Hilton Beach, Jocelyn, MacLennan, St. Joseph, Sault Ste. Marie
Source: Whitefish Bay (Lake Superior)
Mouth: North Channel (Lake Huron)
Length 74.5 mi (120 km)
Drummond Island (Michigan)
Neebish Island (Michigan)
St. Joseph Island (Ontario)
Squirrel Island (Ontario / Garden River First Nation)
Sugar Island (Michigan)
Whitefish Island (Ontario / Batchewana First Nation)
The river flows in northeast Asia, on the border between China and North Korea in its upper reaches, and between North Korea and Russia in its last 17 kilometers (11 mi) before entering the Sea of Japan.
Name origin: Mongolian, "ten thousand" or a myriad
Countries; North Korea, China, Russia
Source: Paektu Mountain(Baekdu Mountain on the Chinese-North Korean border, as well as of the Yalu River (which forms the western portion of the border of North Korea and China)
Mouth: Sea of Japan- location; Sea of Japan (East Sea), Russia, North Korea (A former island at the mouth of the Tumen, known as Noktundo, has been a boundary contention between Russia and North Korea. The Qing Dynasty ceded the island to Russia as part of the Primorsky Maritimes (East Tartary) in the 1860 Treaty of Peking)
Length 521 km (324 mi)
The entire length of the Ural River is considered the Europe-Asia boundary by most authoritative sources.
Origin: near Mount Kruglaya of the Uraltau mountain ridge in southern Ural Mountains, Russia
flows south parallel and west of the north-flowing Tobol River, through Magnitogorsk, and around the southern end of the Urals, through Orsk where it turns west for about 300 kilometres (190 mi), to Orenburg, when the Sakmara River joins. From Orenburg it continues west, passing into Kazakhstan, then turning south again at Oral, and meandering through a broad flat plain until it reaches the Caspian a few miles below Atyrau, where it forms a fine digitate delta.
Mouth: Caspian Sea
Basin countries: Russia, Kazakhstan
Length 2,428 km (1,509 mi)
It is the third longest river in Europe after the Volga and the Danube
It passes between the states of Santa Catarina and Rio Grande do Sul in Brazil; forms the eastern border of the provinces of Misiones, Corrientes, and Entre Ríos in Argentina; and makes up the western borders of the departments of Artigas, Salto, Paysandú, Río Negro, Soriano, and Colonia in Uruguay.
Countries: Argentina, Brazil, Uruguay
Source: starts in the Serra do Mar in Brazil, where the Canoas River and the Pelotas River are joined
Mouth: Río de la Plata (Together with the Paraná River, the Uruguay forms the Río de la Plata estuary.)
Length 1,838 km (1,140 mi)
An unusual feature of the Uruguay River is a submerged canyon. This canyon formed during the Ice Age. The canyon is only visible in two places, one of which is the Moconá Falls (also called the Yucumã Falls). However, the falls are not visible for 150 days per year and become more like rapids when they are not visible. Unlike most waterfalls, the Moconá Falls are parallel to the river, not perpendicular.
Yalu river on the border between North Korea and China. Together with the Tumen River to its east, and a small portion of Paektu Mountain, the Yalu forms the border between North Korea and China and is notable as a site involved in military conflicts in the First Sino-Japanese War, the Russo-Japanese War and the Korean War
Name origin: Manchu, "the boundary between two countries"
Countries: China (CHN), North Korea (PRK)
Provinces: Jilin (CHN), Liaoning (CHN), Ryanggang (PRK), Chagang (PRK), North Pyongan (PRK), Sinuiju SAR (PRK)
Source: South of Heaven Lake, CHN-PRK border, Paektu Mountain (Changbai Mountain), on the North Korea-China border
Mouth: Korea Bay, between Dandong (China) and Sinuiju (North Korea)
Length 790 km (491 mi)
There are 205 islands on the Yalu. A 1962 border treaty between North Korea and China split the islands according to which ethnic group were living on each island. North Korea possesses 127 and China 78.
The river rises in Zambia and flows through eastern Angola, along the eastern border of Namibia and the northern border of Botswana, then along the border between Zambia and Zimbabwe to Mozambique, where it crosses that country to empty into the Indian Ocean.
Countries Zambia, DR Congo, Angola, Namibia, Botswana, Zimbabwe, Mozambique, Malawi, Tanzania
Source: The river rises in a black marshy dambo in north-west Zambia, in dense undulating miombo woodland - location: Mwinilunga, Zambia
Mouth Indian Ocean
- location Mozambique
- coordinates 18°34′14″S 36°28′13″ECoordinates: 18°34′14″S 36°28′13″E
Length 2,574 km (1,599 mi)
Upper Zambezi: flows to the south-west into Angola- dense evergreen Cryptosepalum dry forest,- re-enters Zambia- Chavuma Falls- to the Victoria Falls
Middle Zambezi: Victoria Falls -through the Batoka Gorge- enters Lake Kariba, created in 1959 following the completion of the Kariba Dam-At the confluence of the Luangwa it enters Mozambique.-ends where the river enters Lake Cahora Bassa (also spelled Cabora Bassa)
Lower Zambezi: from Cahora Bassa- the Lupata Gorge-On approaching the Indian Ocean, the river splits up into a delta