Noguera Ribagorzana

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Noguera Ribagorzana
The river in the basin of the

The river in the basin of the

Data
location Spain
River system Ebro
Drain over Segre  → Ebro  → Mediterranean
source Llacs de Mulleres
42 ° 37 '36 "  N , 0 ° 42' 21"  O
Source height 2450  msnm
muzzle At Corbins in the Segre coordinates: 41 ° 40 ′ 29 "  N , 0 ° 42 ′ 22"  E 41 ° 40 ′ 29 "  N , 0 ° 42 ′ 22"  E
Mouth height 165  m
Height difference 2285 m
Bottom slope 17 ‰
length 133 km
Reservoirs flowed through Pantà d'Escales, Pantà de Canelles , Pantà de Santa Anna
Medium-sized cities El Pont de Suert , Alfarràs , Almenar
Canelles reservoir
The river at the Pont d'Ornit

The Noguera Ribagorzana ( Spanish ) or Noguera Ribagorçana ( Catalan ) is a 133-kilometer tributary of the Segre , the upper and middle reaches of which largely form the border between Aragon and Catalonia in Spain . It rises in the Llacs de Mulleres in the Pico de Aneto massif ( Pyrenees ) at an altitude of around 2450  m . Its upper reaches in the Pyrenees to the reservoir of the Pantà d'Escales are accompanied by one of the main connections between Spain and France, the N 230. In the middle reaches, where it is dammed in the Pantà de Santa Anna and Pantà de Canelles, the valley narrows and the road leaves it. South of Montañana, through the Mont Rebei gorge, it divides the Serra del Montsec into the Montsec de l'Estall in the west and the Montsec d'Ares in the east. At Corbins the Noguera flows into the Segre, a few kilometers above Lleida .