Editing Castile and León (section)

====Rivers====
{{Main|Category:Rivers of Castile and León}}

;Douro basin
[[File:Zamora (9223963842).jpg|thumb|The Douro passing through [[Zamora, Spain|Zamora]].]]
The main hydrographic network of Castile and León is constituted by the [[Douro|Douro river]] and its tributaries. From its source in the [[Picos de Urbión]], in Soria, to its mouth in the Portuguese city of [[Porto]], the Douro covers 897&nbsp;km. From the north descend the [[Pisuerga]], the [[Valderaduey]] and the [[Esla (river)|Esla]] rivers, its tributaries more plentiful and by the east, with less water in its flows, highlight the [[Adaja]] and the [[Duratón (river)|Duratón]]. After passing the town of [[Zamora, Spain|Zamora]], the Douro is confined between the canyons of the [[Arribes del Duero Natural Park]], bordering with [[Portugal]]. On the left bank are important tributaries such as [[Tormes]], [[Huebra]], [[Águeda (river)|Águeda]], [[Côa River|Côa]] and Paiva, all from [[Sistema Central]]. On the right they reach the [[Sabor (river)|Sabor]], the Tua and the [[Tâmega (river)|Tâmega]], born in the [[Galician Massif]]. After the Arribes area, the Douro turns west into Portugal until it empties into the [[Atlantic Ocean]].

; Other watersheds
Several rivers of the community pour their waters into the [[Ebro basin]], in Palencia, Burgos and Soria ([[Jalón (river)|Jalón river]]), that of [[Miño-Sil river confederation|Miño-Sil]] in León and Zamora, that of the [[Tagus basin|Tagus]] in Ávila and Salamanca (rivers [[Tiétar (river)|Tiétar]] and [[Alberche]] and [[Alagón (river)|Alagón]] respectively) and [[Cantabrian river confederation|Cantabrian basin]] in the provinces through which the Cantabrian Mountains extends.