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Nela (river)

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The Nela is a river in northeastern Castile-Leon, Spain, one of the tributaries of the Ebro River. It has a watershed of 1.081,20 km², with a total length of 75 km (47 mi).

Arch carved by the Nela River, Puentedey, Orbaneja del Castillo, Province of Burgos, Spain.jpg
A natural arch carved by the Nela River in Puentedey, Burgos Province
Physical characteristics
 ⁃ locationMontes del Somo, Merindad de Valdeporres
 ⁃ elevationca 1,200 m (3,900 ft)
 ⁃ location
Ebro River
Length75 km (47 mi)[1]
Basin size1,081.20 km2 (417.45 sq mi)
 ⁃ average16.70 m3/s (590 cu ft/s)

The river has its source in the karstic hills of Montes del Somo, near Merindad de Valdeporres. Most of the Nela's water is drawn by the Trasvase Cerneja-Ordunte to supply water to Bilbao, as well as irrigation.[2] There are fishfarms in Busnela and Pedrosa de Valdeporres, as well as a hydroelectric complex in Nofuentes. Finally the Nela flows into the Ebro near Trespaderne.

The amphibian Discoglossus galganoi, the fish Chondrostoma toxostoma and the snail Elona quimperiana are among the most common animal species found in the Nela river's waters.[3]


  1. ^ Datos físicos de las corrientes clasificadas por el C.E.H. Confederación Hidrográfica del Ebro. 1965. p. 151.
  2. ^ Confederación Hidrográfica del Ebro; Plan Hidrológico
  3. ^ Minmisterio de Ambiente y Medio Rural y Marino:Biodiversidad:Red Natura 2000:Red Natura

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