Noguera Ribagorçana
Encyclopedia
The Noguera Ribagorzana or Noguera Ribagorçana (nuˈɣeɾə riβəɣurˈsanə, noˈɣeɾa riβaɣoɾˈsana) is a river
River
A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 in northern Spain
Spain
Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

. For much of its course of 130 km it forms the administrative boundary between Catalonia
Catalonia
Catalonia is an autonomous community in northeastern Spain, with the official status of a "nationality" of Spain. Catalonia comprises four provinces: Barcelona, Girona, Lleida, and Tarragona. Its capital and largest city is Barcelona. Catalonia covers an area of 32,114 km² and has an...

 and Aragon
Aragon
Aragon is a modern autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. Located in northeastern Spain, the Aragonese autonomous community comprises three provinces : Huesca, Zaragoza, and Teruel. Its capital is Zaragoza...

. Its source is in the municipality of Vielha e Mijaran
Vielha e Mijaran
Vielha e Mijaran is a municipality in the comarca of the Val d'Aran in Catalonia, Spain. It was created in 1970 by the merger of the municipalities of Arròs e Vila, Betlan, Escunhau, Gausac, Vielha and Vilac: the former municipalities retain some privileges as "decentralised municipal entities" , as...

 (Aran Valley) at an elevation of about 2400 m, and its upper valley forms the main access route to the Aran Valley (N-230 road and the Vielha tunnel (5230 m long) under the watershed
Water divide
A drainage divide, water divide, divide or watershed is the line separating neighbouring drainage basins...

). It passes through the traditional county of Ribagorça and the town of Pont de Suert (Alta Ribagorça
Alta Ribagorça
Alta Ribagorça is one of the comarques of Catalonia, Spain. Its capital is Pont de Suert. The highest peak is the Comaloformo in the massif of Bessiberri. Northeast of the region is the western part of the National Aiguas Tortas and Lake of San Mauricio...

). Dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...

s form two large reservoirs, the Escales below Pont de Suert and the Canelles above Ivars de Noguera
Ivars de Noguera
Ivars de Noguera is a municipality in the comarca of the Noguera in Catalonia, Spain. It is situated on the left bank of the Noguera Ribagorçana river below the Santa Anna reservoir....

 (Noguera
Noguera (comarca)
Noguera is a comarca in Catalonia, Spain. It is the largest comarca and its area represents some 5,56% of Catalonia. Noguera is part of the historical county of Urgell and currently belongs to the Lleida province. Its capital is Balaguer....

). The Noguera Ribagorçana joins the Segre from the right at Vilanova de la Barca
Vilanova de la Barca
Vilanova de la Barca is a municipality in the comarca of Segrià in Catalonia, Spain. It is situated at the confluence of the Segre and Corb rivers.The Urgell canal provides irrigation water for growing cereals and forage plants...

 (Segrià
Segrià
Segrià is a comarca in the west of Catalonia, Spain, bordering Aragon. , over two thirds of its population live in the capital city of Lleida, which is also Catalonia's largest municipality, and remains the most populated comarca in the Lleida province. It takes its name from the river Segre.-...

). It drains a basin of 2036 km².

See also

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