Input: What is the source of the river of which Kraai River is a tributary?

Context:
Passage 1:
Kabompo River
The Kabompo River is one of the main tributaries of the upper Zambezi River. It flows entirely in Zambia, rising to the east of the source of the Zambezi, in North-Western Province along the watershed between the Zambezi and Congo river basins which also forms the border between Zambia and DR Congo. It is the second deepest river in Africa and one of the top five in the world.

Geography
The Kabompo River flows south-west through miombo woodland, then a remote Cryptosepalum dry forest ecoregion, with the West Lunga National Park on its west bank. After flowing past the town of Kabompo, it develops a swampy floodplain up to 5 km wide. The Kabompo Ferry on its lower course carries the main north–south gravel highway on the eastern side of the Zambezi. The river enters the Zambezi north of the town of Lukulu, at the north end of the Barotse Floodplain. Its main tributaries are the Western Lunga River which flows from the north, and the Dongwe River from the east.

See also
List of rivers of Africa
Passage 2:
Chapare River
The Chapare River is a river in Bolivia, which is a tributary of the Mamoré River in the Amazon Basin. The river has its source at the confluence of Espíritu Santo River and San Mateo River in the Cochabamba Department at Villa Tunari. It is the main waterway of Chapare Province.

See also
Tunari National Park

External links
 Media related to Río Chapare at Wikimedia Commons

Chapare River Floods
Passage 3:
Rhonelle
The Rhonelle is a river of northern France. It is 32 km (20 mi) long. It is a right tributary of the Scheldt. Its source is near Locquignol. It flows generally northwest along Le Quesnoy, Villers-Pol and Famars. It flows into the Scheldt in Valenciennes.
Passage 4:
Utva River (Perm Krai)
The Utva (Russian: Утьва) is a river in Perm Krai, Russia, a right tributary of the Veslyana, which in turn is a tributary of the Kama. The river is 76 kilometres (47 mi) long, and its drainage basin covers 697 square kilometres (269 sq mi). The source of the river is in the extreme southwest of the Gaynsky District of Perm Krai, near the border with Kirov Oblast and the Komi Republic. The main tributaries are the Chugrum (right) and the Yuzhnaya Anva (left).
Passage 5:
Hushe River
The Hushe River is a tributary river to the Shyok River which itself is tributary to the Indus River. The main source of the Hushe River is the Gondogoro Glacier. Some streams also flow from other glaciers of the Hushe valley. The Hushe river joins with Saltoro River at Haldi village before joining the Shyok River. Both the Hushe and Saltoro rivers join the Shyok river at the Tsa thang Ghursa village.
Passage 6:
Loimijoki
The river Loimijoki is a river in Finland and the longest tributary of the river Kokemäenjoki. The river originates at the lake Pyhäjärvi in Tammela and joins the river Kokemäenjoki in Huittinen. There is a 54-metre (177 ft) difference in elevation between the source and the mouth of the river, which is 114 kilometres (71 mi) long. The river drains a catchment area of 3,140 square kilometres (1,210 sq mi). The river has several dams at Forssa, Jokioinen and Loimaa.The Loimijoki river runs through the most fertile lands of Finland making its water  relatively muddy. The river was badly polluted by sewage of industry and population centers along the river, but since the 1980s the river has been starting to recover and currently the river sees also recreational use like fishing and water sports.
Passage 7:
Kraai River
The Kraai River (literally "Crow River") is a tributary of the Orange River (also called Gariep River by locals) that flows near Barkly East in the Eastern Cape, South Africa.

The Kraai River originates in the mountains south of Lesotho and flows westward from the confluence of the Bell River and the Sterk Spruit at Moshesh's Ford at 30°51′09″S 27°46′40″E all the way to Aliwal North, where it joins the Orange River at 30°40′02″S 26°45′06″E.The river flows almost entirely over sandstone rocks of the Clarens Formation.
The Kraai is fishable, containing rainbow trout, brown trout and smallmouth yellowfish.

In 1881
a sandstone arch bridge called the J W Sauer bridge was completed over the river.  The bridge linked communities in the Kraai River basin with Aliwal North. The Sauer bridge and the Loch Bridge on the farm
Tyger Krantz, are now Provincial Heritage sites.

Major tributaries
Bell River and a tributary of the Bell, the Kloppershoek Spruit
Sterk Spruit, its tributaries are the Bok Spruit and Rifle Spruit
Joggem Spruit
Langkloof Spruit
Diep Spruit and its tributary, the Three Drifts Stream
Carlisleshoek Spruit and the Maartenshoek Spruit
Klein Wildebeest Spruit
Saalboom Spruit and its tributary, the Vaalhoek Spruit
Karnmelk Spruit

See also

List of rivers of South Africa
List of reservoirs and dams in South Africa
Passage 8:
Shaksgam River
The Shaksgam River (Chinese: 沙克思干河; pinyin: Shakesigan He, Hindi: शक्सगाम नदी, romanized: Shaksgām Nadi, Urdu: دریائے شکسگام, romanized: Daryá-e-Shaksgám) is a left tributary of the Yarkand River. The river is also known as the Kelechin River (Chinese: 克勒青河) and Muztagh River (Chinese: 穆斯塔格河). It rises in the Gasherbrum, Urdok, Staghar, Singhi and Kyagar Glaciers in the Karakoram. It then flows in a general northwestern direction parallel to the Karakoram ridge line in  the Shaksgam Valley. It receives the waters of the Shimshal Braldu river and the Oprang river from the Pakistan-administered Hunza District before turning east and joining the Yarkand River. The stretch of the river's course between Shimshal Braldu and Oprang is used as the Pakistan–China border.Administratively, the Chinese part of the valley is within the southernmost portions of Yarkand County (the source) and the Tashkurgan Tajik Autonomous County (lower course). India claims the entire valley as part of its Jammu and Kashmir state, now part of Ladakh.

History
The river valley was explored in 1889 by Francis Younghusband (who referred to the Shaksgam as the Oprang)., and again in 1926 by Kenneth Mason, who confirmed the sources of the river.

Geography
The upper river valley is used by climbers approaching the north face of K2.  The approach requires a crossing of the river, which is hazardous.  Between its confluence with the Shimshal Braldu River and its confluence with the Oprang River the river forms the border between China and Pakistan administered Kashmir.  The area is used as winter pastures by yak herdsmen from the village of Shimshal. Historically, the bed of the Yarkand river where Shaksgam joins it, was used for cultivation by farmers from the state of Hunza. The rulers of Hunza are said to have obtained these "territorial rights to Shaksgam" in the distant past.The average annual temperature in the region can fall below freezing.

See also
Trans-Karakoram Tract
Dafdar
Yinsugaiti Glacier
Sarpo Laggo Glacier
Passage 9:
Neste (river)
The Neste (French pronunciation: [nɛst]; Occitan: Nestés) is a river in southern France, a left tributary of the Garonne. It is 73.1 km (45.4 mi) long. It rises from several sources around Saint-Lary-Soulan, central Pyrenees and flows through
the following departments and towns:

Hautes-Pyrénées: Saint-Lary-Soulan, Arreau, La Barthe-de-Neste
Haute-Garonne: MontréjeauTwo rivers, the Neste d'Aure and the Neste du Louron, join to form the Neste at Arreau. The Neste flows into the Garonne in Montréjeau.
Passage 10:
Bolshaya Lyampa
The Bolshaya Lyampa (Russian: Большая Лямпа) is a river in Perm Krai, Russia, a right tributary of the Uls which in turn is a tributary of the Vishera. The river is 34 kilometres (21 mi) long. Its source is near the border with Sverdlovsk Oblast. It flows into the Uls 55 kilometres (34 mi) from the larger river's mouth. The Bolshaya Lyampa's main tributary is the Malaya Lyampa.
Passage 11:
Raba (river)
The Raba is a river in the south of Poland (Lesser Poland Voivodeship), right tributary to the river Vistula. Its source is in the Beskids, between the towns of Rabka-Zdrój and Nowy Targ. It flows to the north and then to the northeast. Towns along the river Raba include Rabka-Zdrój, Mszana Dolna, Myślenice, Dobczyce and Bochnia.
For centuries, the Raba was an important artery, along which several towns and villages were established. Its name probably comes from Celtic languages, and the Raba is divided into three parts: the Upper Raba (60 kilometres [37 mi] long located in the Beskids), the Middle Raba (in the Carpathian Foothills), and the Lower Raba (in the Sandomierz Basin).
The Raba has its source at the Sieniawa mountain pass, at the height of 750 metres (2,460 ft) above sea level. It flows into the Vistula near Uscie Solne, after 134.7 kilometres (83.7 mi), while the area of its drainage basin is  1,537.1 square kilometres (593.5 sq mi). From its source downstream to the town of Myślenice, the Raba is a typical mountain river, with narrow valley, rock-covered bed, fast currents and big drops. Below Lake Dobczyce it retains its mountain features for several kilometers. The river has no tributaries for its last 19 kilometres (12 mi).
The Raba marks the boundary between the Makow Beskids and the Island Beskids, as well as the boundary between the Wieliczka Foothills, and the Wisnicz Foothills. Its tributaries are mainly mountain streams, such as Poniczanka, Slonka, Krzyworzeka, Mszanka, Kasinianka, Kaczanka, Krzczonówka, Trzemesnianka, Stradomka, Babica.

See also
Rivers of Poland
1934 flood in Poland

Sources
Description of the Raba

External links
Fishing on the Raba
Kayaking on the Raba
Passage 12:
Congo River
The Congo River (Kongo: Nzâdi Kôngo, French: Fleuve Congo, Portuguese: Rio Congo), formerly also known as the Zaire River, is the second-longest river in Africa, shorter only than the Nile, as well as the third largest river in the world by discharge volume, following the Amazon and the Ganges rivers. It is also the world's deepest recorded river, with measured depths of around 220 m (720 ft). The Congo-Lualaba-Chambeshi River system has an overall length of 4,700 km (2,900 mi), which makes it the world's ninth-longest river. The Chambeshi is a tributary of the Lualaba River, and Lualaba is the name of the Congo River upstream of Boyoma Falls, extending for 1,800 km (1,100 mi).
Measured along with the Lualaba, the main tributary, the Congo River has a total length of 4,370 km (2,720 mi). It is the only major river to cross the Equator twice. The Congo Basin has a total area of about 4,000,000 km2 (1,500,000 sq mi), or 13% of the entire African landmass.

Name
The name Congo/Kongo originates from the Kingdom of Kongo once located on the southern bank of the river. The kingdom in turn was named for the indigenous Bantu Kongo people, known in the 17th century as "Esikongo". South of the Kingdom of Kongo proper lay the similarly named Kakongo kingdom, mentioned in 1535. Abraham Ortelius labeled "Manicongo" as the city at the mouth of the river in his world map of 1564. The tribal names in Kongo possibly derive from a word for a public gathering or tribal assembly. The modern name of the Kongo people or Bakongo was introduced in the early 20th century.The name Zaire is from a Portuguese adaptation of a Kikongo word, nzere ("river"), a truncation of nzadi o nzere ("river swallowing rivers"). The river was known as Zaire during the 16th and 17th centuries; Congo seems to have replaced Zaire gradually in English usage during the 18th century, and Congo is the preferred English name in 19th-century literature, although references to Zahir or Zaire as the name used by the inhabitants remained common. The Democratic Republic of the Congo and the Republic of the Congo are named after it, as was the previous Republic of the Congo which had gained independence in 1960 from the Belgian Congo. The Republic of Zaire during 1971–1997 was also named after the river's name in French and Portuguese.

Basin and course
The Congo's drainage basin covers 4,014,500 km2 (1,550,000 sq mi), an area nearly equal to that of the European Union. The Congo's discharge at its mouth ranges from 23,000 to 75,000 m3/s (810,000 to 2,650,000 cu ft/s), with an average of 41,000 m3/s (1,400,000 cu ft/s). The river transports annually 86 million tonnes of suspended sediment to the Atlantic Ocean and an additional 6% of bedload.The river and its tributaries flow through the Congo rainforest, the second largest rainforest area in the world, after the Amazon rainforest in South America. The river also has the second-largest flow in the world, behind the Amazon; the second-largest drainage basin of any river, behind the Amazon; 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.The sources 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.
The Congo flows generally toward the northwest from Kisangani just below the Boyoma Falls, then gradually bends southwestward, passing by Mbandaka, joining with the Ubangi River and running into the Pool Malebo (Stanley Pool). Kinshasa (formerly Léopoldville) and Brazzaville are on opposite sides of the river at the Pool, where the river narrows and falls through a number of cataracts in deep canyons (collectively known as the Livingstone Falls), running by Matadi and Boma, and into the sea at Muanda.
Lower Congo constitutes the 'lower' parts of the great river; that is the section of the river from the river mouth at the Atlantic coast to the twin capitals of Brazzaville and Kinshasa. In this section of the river, there are two significant tributaries, both on the left or south side. The Kwilu River originates in the hills near the Angolan border and enters the Congo some 100 km upstream from Matadi. The other being the Inkisi River, that flows in a northerly direction from the Uíge Province in Angola to the confluence with the Congo at Zongo some 80 km downstream from the twin capitals. Because of the vast number of rapids, in particular the Livingstone Falls, this section of the river is not operated continuously by riverboats.

Drainage basin
The Congo basin covers ten countries and accounts for about 13% of Africa. The highest point in the Congo basin is in the Ruwenzori Mountains, at an altitude of around 4,340 m (14,240 ft) above sea level.

Distribution of the Congo basin area between countries:
The most important hydrological stations along the Congo river are:

Discharge
The Congo River discharge at Kinshasa/Brazzaville stations since the start of measurements (1902 to 2021):

Tributaries
The main river and tributaries are (sorted in order from the mouth heading upstream):

Lower Congo (river mouth to Kinshasa)
Downstream of Kinshasa, from the river mouth at Banana, there are a few major tributaries.

M'pozo (left)
Kwilu (left)
Inkisi (left)
Djoué (right)Middle Congo (Kinshasa to the Boyoma Falls)

Kwa-Kassai (left)
Fimi
Lukenie
Kwango
Kwilu
Sankuru
Alima (right)
Likouala-Mossaka (right)
Sangha (right)
Kadéï (570 km, 41,000 km², 466 m³/s)
Ubangi (right)
Mbomou
Uele
Tshuapa or Ruki (left)
Lulonga (left)
Lopori
Maringa
Mongala (right)
Itimbiri (right)
Aruwimi (right)
Lomami (left)
Lindi (right)Upper Congo (Lualaba; upstream from the Boyoma Falls)

Lowa (right)
Ulindi (right)
Elila (right)
Luama (right)
Lukuga (right)
Luvua (right)
Luapula (740 km, 173,386 km², 741 m³/s)
Chambeshi (500 km, 44,427 km², 185 m³/s)

Economic importance
Although the Livingstone Falls prevent access from the sea, nearly the entire Congo above them is readily navigable in sections, especially between Kinshasa and Kisangani. Large river steamers worked the river until quite recently. The Congo River still is a lifeline in a land with few roads or railways. Railways now bypass the three major falls, and much of the trade of Central Africa passes along the river, including copper, palm oil (as kernels), sugar, coffee, and cotton.

Hydroelectric power
The Congo River is the most powerful river in Africa. During the rainy season over 50,000 cubic metres (1,800,000 cu ft) of water per second flows into the Atlantic Ocean. Opportunities for the Congo River and its tributaries to generate hydropower are therefore enormous. Scientists have calculated that the entire Congo Basin accounts for 13 percent of global hydropower potential. This would provide sufficient power for all of Sub-Saharan Africa's electricity needs.Currently, there are about 40 hydropower plants in the Congo Basin. The largest are the Inga dams, about 200 kilometres (120 mi) southwest of Kinshasa. The project was launched in the early 1970s, when the first dam was completed. The plan (as originally conceived) called for the construction of five dams that would have had a total generating capacity of 34,500 megawatts (MW). To date only the Inga I and Inga II dams have been built, generating 1,776 MW.In February 2005, South Africa's state-owned power company, Eskom, announced a proposal to expand generation through improvements and the construction of a new hydroelectric dam. The project would bring the maximum output of the facility to 40,000 megawatt (GW). It is feared that these new hydroelectric dams could lead to the extinction of many of the fish species that are native to the river.

Natural history
The current course of the Congo River formed between 1.5 and 2 million years BP, during the Pleistocene. It is likely that during this period many upper tributaries of the Congo were captured from adjacent river basins, including the Uele and upper Ubangi from the Chari system and the Chambeshi River alongside a number of upper Kasai River tributaries from the Zambezi system.The Congo's formation may have led to the allopatric speciation of the bonobo and the common chimpanzee from their most recent common ancestor. The bonobo is endemic to the humid forests in the region, as are other iconic species like the Allen's swamp monkey, dryas monkey, aquatic genet, okapi, and Congo peafowl.In terms of aquatic life, the Congo River Basin has a very high species richness and among the highest known densities of endemics. As of 2009, almost 800 fish species have been recorded from the Congo River Basin (not counting Lake Tanganyika, which is connected but ecologically very different), and large sections remain virtually unstudied. For example, the section in Salonga National Park, which is about the size of Belgium, had still not been sampled at all in 2006. New fish species are scientifically described with some regularity from the Congo River Basin, and many undescribed species are known.The Congo has by far the highest diversity of any African river system; in comparison, the next richest are the Niger, Volta and Nile with about 240, 140 and 130 fish species, respectively. Because of the great ecological differences between the regions in the Congo basin —including habitats such as river rapids, deep rivers, swamps, and lakes— it is often divided into multiple ecoregions (instead of treating it as a single ecoregion). Among these ecoregions, the Livingstone Falls cataracts has more than 300 fish species, including approximately 80 endemics while the southwestern part (Kasai River basin) has more than 200 fish species, of which about a quarter are endemic.The dominant fish families – at least in parts of the river – are Cyprinidae (carp/cyprinids, such as Labeo simpsoni), Mormyridae (elephant fishes), Alestidae (African tetras), Mochokidae (squeaker catfishes), and Cichlidae (cichlids). Among the natives in the river is the huge, highly carnivorous giant tigerfish. Three of the more unusual endemics are the whitish (non-pigmented) and blind Lamprologus lethops, which is believed to live as deep as 160 metres (520 ft) below the surface, Heterochromis multidens, which is more closely related to cichlids of the Americas than other African cichlids, and Caecobarbus geertsii, the only known cavefish in Central Africa. There are also numerous endemic frogs and snails. Several hydroelectric dams are planned on the river, and these may lead to the extinction of many of the endemics.Several species of turtles and the slender-snouted, Nile and dwarf crocodile are native to the Congo River Basin. African manatees inhabit the lower parts of the river.

History
Pre-colonial history
The entire Congo basin is populated by Bantu peoples, divided into several hundred ethnic groups. Bantu expansion is estimated to have reached the middle Congo by about 500 BC and the upper Congo by the first century AD. Remnants of the aboriginal population displaced by the Bantu migration, Pygmies/Abatwa of the Ubangian phylum, remain in the remote forest areas of the Congo Basin.
The Kingdom of Kongo was formed in the late 14th century from a merging of the kingdoms of Mpemba Kasi and Mbata Kingdom on the left banks of the lower Congo River. Its territorial control along the river remained limited to what corresponds to the modern Kongo Central province. European exploration of the Congo began in 1482 when Portuguese explorer Diogo Cão discovered the river estuary (likely in August 1482), which he marked by a Padrão, or stone pillar (still existing, but only in fragments) erected on Shark Point. Cão sailed up the river for a short distance, establishing contact with the Kingdom of Kongo. The full course of the river remained unknown throughout the early modern period.The upper Congo basin runs west of the Albertine Rift. Its connection to the Congo was unknown until 1877. The extreme northeast of the Congo basin was reached by the Nilotic expansion at some point between the 15th and 18th centuries, by the ancestors of the Southern Luo speaking Alur people. Francisco de Lacerda followed the Zambezi and reached the uppermost part of the Congo basin (the Kazembe in the upper Luapula basin) in 1796.
The upper Congo River was first reached by the Arab slave trade by the 19th century. Nyangwe was founded as a slavers' outpost around 1860. David Livingstone was the first European to reach Nyangwe in March 1871. Livingstone proposed to prove that the Lualaba connected to the Nile, but on 15 July, he witnessed a massacre of about 400 Africans by Arab slavers in Nyangwe, which experience left him too horrified and shattered to continue his mission to find the sources of the Nile, so he turned back to Lake Tanganyika.

Early European colonization
The Europeans had not reached the central regions of the Congo basin from either the east or west, until Henry Morton Stanley's expedition of 1876–77, supported by the Committee for Studies of the Upper Congo. At the time one of the last open questions of the European exploration of Africa was whether the Lualaba River fed the Nile (Livingstone's theory), the Congo, or even the Niger River. Financed in 1874, Stanley's first trans-Africa exploration started in Zanzibar and reached the Lualaba on October 17, 1876. Overland he reached Nyangwe, the center of a lawless area containing cannibal tribes at which Tippu Tip based his trade in slaves. Stanley managed to hire a force from Tippu Tip to guard him for the next 150 kilometres (90 mi) or so, for 90 days.
The party left Nyangwe overland through the dense Matimba forest. On November 19 they reached the Lualaba again. Since the going through the forest was so heavy, Tippu Tip turned around with his party on December 28, leaving Stanley on his own, with 143 people, including eight children and 16 women. They had 23 canoes. His first encounter with a local tribe was with the cannibal Wenya. In total Stanley reports 32 unfriendly meetings on the river, some violent, even though he attempted to negotiate a peaceful thoroughfare. But the tribes were wary as their only experience of outsiders was with slave traders.
On January 6, 1877, after 640 kilometres (400 mi), they reached Boyoma Falls (called Stanley Falls for some time after), consisting of seven cataracts spanning 100 kilometres (60 mi) which they had to bypass overland. It took them to February 7 to reach the end of the falls. Here Stanley learned that the river was called Ikuta Yacongo, proving to him that he had reached the Congo and that the Lualaba did not feed the Nile.
From this point, the tribes were no longer cannibals but possessed firearms, apparently as a result of Portuguese influence. Some four weeks and 1,900 kilometres (1,200 mi) later he reached Stanley Pool (now Pool Malebo), the site of the present day cities Kinshasa and Brazzaville. Further downstream were the Livingstone Falls, misnamed as Livingstone had never been on the Congo: a series of 32 falls and rapids with an elevation change of 270 metres (900 ft) over 350 kilometres (220 mi). On 15 March they started the descent of the falls, which took five months and cost numerous lives. From the Isangile Falls, five falls from the foot, they beached the canoes and Lady Alice and left the river, aiming for the Portuguese outpost of Boma via land.
On August 3 they reached the hamlet Nsada. From there Stanley sent four men with letters forward to Boma, asking for food for his starving people. On August 7 relief came, being sent by representatives from the Liverpool trading firm Hatton & Cookson. On August 9 they reached Boma, 1,001 days since leaving Zanzibar on November 12, 1874. The party then consisted of 108 people, including three children born during the trip. Most probably (Stanley's own publications give inconsistent figures), he lost 132 people through disease, hunger, drowning, killing and desertion.Kinshasa was founded as a trading post by Stanley in 1881 and named Léopoldville in honor of Leopold II of Belgium. The Congo Basin was privately claimed by Leopold II as Congo Free State in 1885 where the many Atrocities in the Congo Free State were committed until the region was called the Belgian Congo.

See also
List of crossings of the Congo River
2021 Congo River disaster

Notes
Passage 13:
Rufiji River
The Rufiji River lies entirely within Tanzania. It is also the largest and longest river in the country. The river is formed by the confluence of the Kilombero and Luwegu rivers. It is approximately 600 kilometres (370 mi) long, with its source in southwestern Tanzania and its mouth on the Indian Ocean opposite Mafia Island across the Mafia Channel, in Pwani Region. Its principal tributary is the Great Ruaha River. It is navigable for approximately 100 kilometres (62 mi).
The Rufiji river is approximately 200 kilometres (120 mi) south of Dar es Salaam. The river's delta contains the largest mangrove forest in eastern Africa.

History
A branch of ancient sea routes led down the East African coast called "Azania" by the Greeks and Romans in the 1st century CE as described in the Periplus of the Erythraean Sea (and, very probably, Chinese: 澤散 in the 3rd century by the Chinese), at least as far as the port known to the Romans as Rhapta, which was probably located in the delta of the Rufiji River in modern Tanzania.During the First World War, from October 1914 to July 1915, the river delta was the scene of a protracted naval operation. These were the attempts, and later achievement, by the Royal Navy to neutralize and destroy the German cruiser Konigsberg.

Basin
The catchment basin for the Rufiji River complex is 177,429 square kilometres (68,506 sq mi).

Hydroelectric Project
Tanzania president John Magufuli has approved the construction of a controversial new dam and power station on the river at Stiegler's Gorge. The power station is expected to provide 2,100 megawatts of electricity, more than triple Tanzania's existing installed hydropower capacity which is only 562 megawatts. Construction of the dam started on July 26, 2019, and it is expected be ready by 2022.
Passage 14:
Mangalam River
Mangalam River is the main tributary of the river Gayathripuzha, which in turn is a tributary of Bharathapuzha, the second longest river in Kerala, India.  It is around 30 km long in length, with its source from Nelliyampathi forests, and passing through Vadakkencherry, Kannambra, Puthucode, Padur, etc. and joining Gayathripuzha at Plazhi in the border of Thrissur and Palakkad districts.
Cherukunnapuzha is a tributary of Mangalam River and Mangalam Dam is constructed across this river. A canal system for irrigation purpose was completed and opened in 1966, in Alathur taluk, Palakkad district.

Tributaries of the river Mangalam river
Cherukunnapuzha

See also
Bharathapuzha - Main river
Gayathripuzha - One of the main  tributaries of the river Bharathapuzha

Other tributaries of the river Gayathripuzha
Ayalurpuzha
Vandazhippuzha
Meenkarappuzha
Chulliyar
Passage 15:
Cagne
The Cagne is a river that flows through the Alpes-Maritimes department of southeastern France. Its source is near Coursegoules, and it flows into the Mediterranean Sea in Cagnes-sur-Mer. It is 27.5 km (17.1 mi) long. The Malvan is one of its tributaries.
Passage 16:
Thoré
The Thoré (French pronunciation: [tɔʁe]) is a 61.6-kilometre-long (38.3 mi) river in the Hérault and Tarn departments in southern France. Its source is in the northern part of Rieussec. It flows generally northwest. It is a left tributary of the Agout, into which it flows between Navès and Castres.

Departments and communes along its course
This list is ordered from source to mouth:

Hérault: Rieussec, Verreries-de-Moussans,
Tarn: Labastide-Rouairoux, Anglès, Lacabarède, Rouairoux, Sauveterre, Albine, Saint-Amans-Valtoret, Saint-Amans-Soult, Bout-du-Pont-de-Larn, Mazamet, Pont-de-Larn, Aussillon, Payrin-Augmontel, Aiguefonde, Caucalières, Labruguière, Castres, Navès,
Passage 17:
Klehini River
The Klehini River is a large, glacially fed stream in the vicinity of Haines in the U.S. state of Alaska.
The Klehini River is about 42 miles (68 km) long from its source in British Columbia to its mouth at the Chilkat River, of which it is the largest tributary.  The Klehini River is renowned for its salmon runs, its biannual congregation of bald eagles—the second largest in the Haines area after the Chilkat River's Council Grounds—and for the Klehini Falls. The Klehini also delineates the northern boundary of the Chilkat Range.
The name Klehini appears to be derived from the Tlingit phrase l’éiw héeni, which translates to river with sand or gravel in it.   The Klehini River contains abundances of both sand and gravel.
The lower Klehini is located within the Alaska Chilkat Bald Eagle Preserve.
Walt Disney's 1991 rendition of White Fang was filmed along the Klehini River.

Klehini Falls
The Klehini Falls are a series of four cataracts in far northwestern British Columbia occurring in a narrow gorge near the headwaters of the Klehini River. The falls are separated from one another by a distance of approximately 300 feet (91 m), with an average plunge of 30 to 40 feet (9.1 to 12.2 m). The individual cataracts are currently unnamed.

See also
List of rivers of Alaska
List of British Columbia rivers
Passage 18:
Orange River
The Orange River (from Afrikaans/Dutch: Oranjerivier) is a river in Southern Africa. It is the longest river in South Africa. With a total length of 2,432 km (1,511 mi), the Orange River Basin extends from Lesotho into South Africa and Namibia to the north. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Lesotho and between South Africa and Namibia, as well as several provincial borders within South Africa. Except for Upington, it does not pass through any major cities. The Orange River plays an important role in the South African economy by providing water for irrigation and hydroelectric power. The river was named the Orange River in honour of the Dutch ruling family, the House of Orange, by the Dutch explorer Robert Jacob Gordon. Other names include simply the word for river, in Khoekhoegowab orthography written as !Garib, which is rendered in Afrikaans as Gariep River with the intrusion of a velar fricative in place of the alveolar click, Groote River (derived from Kai !Garib) or Senqu River (used in Lesotho), derived from ǂNū "Black". It is known in isiZulu as isAngqu.

Course
The Orange rises in the Drakensberg mountains along the border between South Africa and Lesotho, about 193 km (120 mi) west of the Indian Ocean and at an altitude of over 3,000 m (9,800 ft). The extremity of the Orange River inside Lesotho is known as the Senqu. Parts of the Senqu River freeze in winter because of the high altitude. This creates droughts downstream, which mainly affect goat and cattle production.

The Orange River then runs westward through South Africa, forming the south-western boundary of the Free State province. In this section, the river flows first into the Gariep Dam and later into the Vanderkloof Dam. From the border of Lesotho to below the Vanderkloof Dam, the river bed is deeply incised. Further downstream, the land is flatter, and the river is used extensively for irrigation.
At the western point of the Free State, southwest of Kimberley, the Orange meets with its main tributary, the Vaal River, which forms much of the northern border of the province. From here, the river flows further westward through the arid wilderness of the southern Kalahari region and Namaqualand in the Northern Cape province to meet with Namibia at 20°E longitude. From here, it flows westward for 550 km (340 mi), forming the international border between the province and Namibia's ǁKaras Region. On the border, the river passes the town of Vioolsdrif, the main border post between South Africa and Namibia.

In the last 800 km (500 mi) of its course, the Orange receives many intermittent streams, and several large wadis lead into it. In this section, the Namib Desert terminates on the north bank of the river, so under normal circumstances, the volume of water added by these tributaries is negligible. Here, the bed of the river is once again deeply incised. The Augrabies Falls are located on this section of the Orange, where the river descends 122 m (400 ft) in a course of 26 km (16 mi).
The Orange empties into the Atlantic Ocean between the small towns of Oranjemund (meaning "Orange mouth") in Namibia and Alexander Bay in South Africa, about equidistant between Walvis Bay and Cape Town. Some 33 km (21 mi) from its mouth, it is obstructed by rapids and sand bars and is generally not navigable for long stretches.
The river has a total length of 2,432 km (1,511 mi).

Catchment and rainfall
In the dry season, the volume of the water in the river is considerably reduced because of the rapid run-off and evaporation. At the source of the Orange, the rainfall is about 2,000 mm (79 in) per annum, but precipitation decreases as the river flows westward; at its mouth, the rainfall is less than 50 mm (2.0 in) per year. The factors that support evaporation, though, tend to increase in a westerly direction. In the wet season (summer), the Orange river becomes a brown colored torrent. The huge mass of sediment carried constitutes a long-term threat to engineering projects on the river.The total catchment of the Orange River (including the Vaal) extends over 973,000 km2 (376,000 sq mi), i.e. equivalent to about 77% of the land area of South Africa (1,221,037 km2 (471,445 sq mi)). Around 366,000 km2 (141,000 sq mi) (38%), however, are situated outside the country in Lesotho, Botswana, and Namibia.

Tributaries
Vaal River - 1,458 km (906 mi)
Caledon River - 642 km (399 mi)
Khubelu River - 144 km (89 mi)

Dams
Armenia Dam
Egmont Dam
Gariep Dam
Newberry Dam
Vanderkloof Dam
Welbedacht Dam

History
Etymology
Some of the earliest precolonial inhabitants called the river ǂNūǃarib, referring to its black colour, or sometimes just Kai !Arib ("Great River"), from which is derived the Afrikaans version Gariep, and translation "Groote Rivier". The early Dutch name for the river was just that translation, Groote Rivier, meaning "Great River". The river was named the Orange River by Colonel Robert Gordon, commander of the United East India Company (VOC) garrison at Cape Town, on a trip to the interior in 1779. Gordon named the river in honor of William V of Orange. A popular but incorrect belief is that the river was named after the supposedly orange color of its water, as opposed to the color of its tributary, the Vaal River, which name is derived from the name ǀHaiǃarib "pale river" (vaal being Afrikaans for pale or grey). Since the end of apartheid, the name "Gariep" has had greater favour in official correspondence in South Africa, although the name "Orange" has greater international recognition. In Lesotho, where the river rises, it is known as the Senqu River, derived from the original Khoemana name.

The Eastern Cape Geographical Names Committee has advertised its intention to consider a name change from the colonial name, for that portion of the river that forms the border between the Eastern Cape and the Free State, with suggestions being IGqili or Senqu. The advertisement placed in the Aliwal Weekblad newspaper states that the "present name is perceived to have a strong association with the history of colonial subjugation and has therefore no place under the current democratic dispensation."

The Grootslang
In South African folklore, the Orange River is often associated with the Grootslang, a mythical being resembling a giant serpent, which is often connected to the river's alluvial diamonds. The Grootslang is described as living in a gem-filled cave connected to the Orange River by a natural pipe through which the diamonds gradually enter the river. Other sites said to be lairs of the creature include the pool beneath the King George Cataract at Aughrabies Falls, which is also said to be a source of diamonds, and a large rock in the middle of the river itself. In this version of the legend, the Grootslang is also said to prey on cattle from the river's banks.

Economy
As the collection point for the majority of South Africa's water, the Orange River plays a major role in supporting agriculture, industry, and mining. To assist in this, two large water schemes have been created, the Orange River Project and the Lesotho Highlands Water Project. Historically, the river played an important role in the South African diamond rush, with the first diamonds in the country being discovered in alluvial deposits on the Orange. Today, several commercial diamond mines operate along the final stretch of the Orange River and around its mouth.
Because of the lack of dangerous animals and high water levels during summer, the river is used for recreational canoeing and rafting. Orange River rafting has become very popular with many companies using their camps along the river from which to operate. The most popular trips are four-day and six-day river trips that take place either along the gorge below the Augrabies Falls or along the Richtersveld area.

Orange River Project
The Orange River Project (ORP) was one of the largest and most imaginative projects of its kind in South Africa. It was constructed by Hendrik Verwoerd's government at the height of the apartheid era. The ORP was built to exploit the waters of the Orange River—which, without the Vaal River, represents some 14.1% of the total runoff in South Africa—and in the process, to satisfy an increasing demand for water. The main objectives of the project were:

to stabilise river flow,
the generation and transmission of hydroelectric power,
to provide a reliable water supply for users in the Orange River basin, and
to give a new lease on life to water-deficient areas in the Eastern Cape, such as the Great Fish and Sundays River valleys.The Gariep Dam near Colesberg is the main storage structure within the Orange River. From here, the water is supplied in two directions, westward along the Orange River (via hydroelectric power generators) to the Vanderkloof Dam and southward through the Orange-Fish Tunnel to the Eastern Cape.

Hydroelectricity
Eskom operates hydroelectric power stations at both the Gariep Dam and the Vanderkloof Dam. The hydroelectric power station at the Vanderkloof Dam was the first power-generation station in South Africa situated entirely underground. The towns Oviston and Oranjekrag were established to facilitate the construction and operation of the new infrastructure.

Irrigation
Irrigation in the vast area downstream of the Vanderkloof Dam, which has turned thousands of hectares of arid veld into highly productive agricultural land, was made possible by the construction of the Gariep and Vanderkloof Dams. Old established irrigation schemes such as those at Buchuberg, Upington, Kakamas, and Vioolsdrif have also benefitted because regulation of the flow is now possible. On the Namibian side of the river, Aussenkehr produces grapes with the help of water from the Orange.
In recent years, the wine-producing areas along the Orange River have grown in importance. Irrigation in the Eastern Cape has also received a tremendous boost, not only from the additional water being made available, but also owing to improvement in water quality. Without this improvement, the citrus farmers along the Lower Sundays River would almost certainly have continued to suffer losses of productivity.

Lesotho Highlands Water Project
The Lesotho Highlands Water Project was conceived to supplement the water supply in the Vaal River System. Water is delivered to South Africa by means of the delivery tunnel which passes under the Lesotho South Africa border at the Caledon River, and then under the Little Caledon River south of Clarens in the Free State, and discharges into the Ash River about 30 kilometres (19 mi) further to the north. The scheme became viable when water demands in Gauteng reached levels that could no longer be supported economically by alternative schemes such as the Tugela River-Vaal River pumped storage scheme, which used the Sterkfontein Dam, located near Harrismith in the Free State.

Alluvial diamonds
In 1867, the first diamond discovered in South Africa, the Eureka Diamond, was found near Hopetown on the Orange River. Two years later, a much larger diamond known as the Star of South Africa was found in the same area, causing a diamond rush. This was soon eclipsed by the diamond rush to mine diamonds directly from kimberlite at Kimberley in 1871, although alluvial diamonds continued to be found in the Orange. Today, several commercial diamond mines operate on the last stretch of the river, as well as the beaches around its mouth. Diamond mines also operate on the middle stretch of the river.

Rafting and canoeing
During the temperate months of March and April, given good rains and the sluices of the dams being open, a canoeist (or rafter) can easily travel 30 kilometres (19 mi) per day. The lower reaches of the river are most popular, because of the spectacular topography. Commercial tours are available, and these expeditions depart from the border town of Vioolsdrif.

Wildlife
The Orange River has no large animals. It lies outside the range of the Nile crocodile, and although hippopotami were once abundant, they were hunted to extermination in the 19th century. The Orange River has a relative paucity of species diversity. A 2011 survey of 13,762 fish found only 16 species of fish present.  Three of these, the common carp, the Mozambique tilapia, and the western mosquitofish are not indigenous.  Another exotic species, rainbow trout, is found in the river headwaters in Lesotho.
Seven species are endemic to the Vaal-Orange River system:
Rock-catfish (Austroglanis sclateri)
Maluti redfin or Maloti minnow (Pseudobarbus quathlambae)
Namaquab barb (Barbus hospes)
River sardine (Mesobola brevianalis)
Smallmouth yellowfish (Labeobarbus aeneus)
Largemouth yellowfish (Labeobarbus kimberlyensis)
Orange River Mudfish (Labeo capensis)

See also
List of rivers in South Africa
List of international border rivers
List of crossings of the Orange River
Passage 19:
Bhilangna River
Bhilangna River is a Himalayan river in Uttarakhand, India, which is the major tributary of the Bhagirathi river, the source stream of the Ganges River of India. Bhilangana is a combination of Bhil and Ganga.The mainstem, Bhilangna, rises at the foot of the Khatling Glacier (elevation 3,717 m (12,195 ft)) approximately 50 km (31 mi) south of the ice cave at Gaumukh, traditionally considered the source of both the Bhagirathi and the Ganges and flows into the Bhagirathi at Old Tehri, the site of the Tehri dam.  It meets its major tributary the Bal Ganga at Ghansali (elevation 976 m (3,202 ft)).
The Bal Ganga, whose headwaters are formed at the foot of Mount Kukhli Dhar (elevation 4,600 m (15,100 ft)), itself has a minor tributary, the Dharam Ganga, which meets it at Thati Kathur (also Budha Kedar) at elevation 1,524 m (5,000 ft)
The Khatling trek route passes alongside the Bhilangna, starting from the last point accessible by road, Ghuttu, until the glacier, which stands at 3700 metres. If one were to go further on the trail past the glacier, one could reach Kedarnath.

See also
Bhagirathi River
Ganges
Alaknanda River

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