The Nalón is the longest river in the autonomous community of

Asturias Asturias (, ; ast, Asturies ), officially the Principality of Asturias ( es, Principado de Asturias; ast, Principáu d'Asturies; Galician-Asturian: ''Principao d'Asturias''), is an autonomous community in northwest Spain. It is coextensiv ...

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , i ...

, measuring . It joins the

Cantabrian Sea The Cantabrian Sea; french: Mer Cantabrique, gl, Mar Cantábrico, ast, Mar Cantábricu, eu, Kantauri. is the term used mostly in Spain to describe the coastal sea of the Atlantic Ocean that borders the northern coast of Spain and the southwe ...

in San Esteban de Pravia. Its tributaries include the Narcea River.

See also