The Aragón (; ) is a river in northern

Spain Spain, or the Kingdom of Spain, is a country in Southern Europe, Southern and Western Europe with territories in North Africa. Featuring the Punta de Tarifa, southernmost point of continental Europe, it is the largest country in Southern Eur ...

, one of the left-hand

tributaries A tributary, or an ''affluent'', is a stream or river that flows into a larger stream ('' main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which the ...

of the river

Ebro The Ebro (Spanish and Basque ; , , ) is a river of the north and northeast of the Iberian Peninsula, in Spain. It rises in Cantabria and flows , almost entirely in an east-southeast direction. It flows into the Mediterranean Sea, forming a de ...

. It rises at Astún (province of

Huesca Huesca (; ) is a city in north-eastern Spain, within the Autonomous communities of Spain, autonomous community of Aragon. It was the capital of the Kingdom of Aragon between 1096 and 1118. It is also the capital of the Spanish Huesca (province), ...

) in the central Pyrenees Mountains, passes southwest through

Jaca Jaca (; in Aragonese language, Aragonese: ''Chaca'' or ''Xaca'') is a city of northeastern Spain in the province of Huesca (province), Huesca, located near the Pyrenees and the border with France. Jaca is an ancient fort on the Aragón (river), ...

and Sangüesa (

Navarre Navarre ( ; ; ), officially the Chartered Community of Navarre, is a landlocked foral autonomous community and province in northern Spain, bordering the Basque Autonomous Community, La Rioja, and Aragon in Spain and New Aquitaine in France. ...

), and joins the Ebro at Milagro (

), near Tudela. The name ''Aragón'' is related to the birth area of the former kingdom, which corresponds to the modern

autonomous community The autonomous communities () are the first-level administrative divisions of Spain, created in accordance with the Spanish Constitution of 1978, with the aim of guaranteeing limited autonomy to the nationalities and regions that make up Sp ...

of Aragón in Spain.

Watershed

The river, used for irrigation and hydroelectric power, is about long; its chief tributary is the Arga River.

Ecology

Non-government sanctioned re-introduction of

Eurasian beaver The Eurasian beaver (''Castor fiber'') or European beaver is a species of beaver widespread across Eurasia, with a rapidly increasing population of at least 1.5 million in 2020. The Eurasian beaver was hunted to near-extinction for both its fur ...

(''Castor fiber'') in Spain around 2003 has resulted in tell-tale beaver signs documented on a stretch on the lower course of the Aragón River and the area adjoining the Ebro River in

Aragon Aragon ( , ; Spanish and ; ) is an autonomous communities of Spain, autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces of Spain, ...

, Spain.

Watershed

Ecology

References

See also