The Gállego River in Biescas
|Origin||Pyrenees, near Col du Pourtalet|
|Source elevation||c. 2,200 m|
|Avg. discharge||34.2 m³/s|
|Basin area||4,008.8 km²|
The river has its source at 2,200 m in Col d'Aneu, Pyrenees, not far from the Col du Pourtalet. It then flows in the Tena Valley through the municipalities of Sallent de Gállego, Panticosa and Biescas. Starting from Sabiñánigo it forms a wide elbow until Triste, from which it continues in its primitive north-south direction until flowing into the Ebro near Zaragoza.
The river's waters are subject to extensive regulation and derivation during its course, thus when it flows into the Ebro its discharge is just some 10% of its natural discharge.
This river gives its name to the Alto Gállego comarca of Aragon.
- Datos físicos de las corrientes clasificadas por el C.E.H. Confederación Hidrográfica del Ebro. 1965. p. 151.
|Wikimedia Commons has media related to Gállego river.|