What is Douro?
{{Infobox river | name = Duero River | name_native = | name_native_lang = | name_other = {{native name|es|Duero}}<br/>{{native name|pt|Douro}} | name_etymology = | image = Rio Douro - Portugal (32615481975) (cropped).jpg | image_size = 255 | image_caption = The river flowing through the [[Douro DOC|Portuguese wine region]], which is a [[World Heritage Site]].|country={{flag|Spain}} and {{flag|Portugal}}}} The '''Duero''' is a [[river]] on the [[Iberian Peninsula]], in [[Spain]] and [[Portugal]]. Its [[Portuguese language|Portuguese]] name is '''Douro.''' It is {{Convert|897|km}} long, and flows into the [[Atlantic Ocean]] near [[Porto]]. It rises in Soria Province, in Spain. The river marks the border between Spain and Portugal for {{Convert|112|km}}. {{Convert|213|km}} of the lower course is in Portugal. The [[Douro railway line]] runs along the river, in Portugal. The region is also known for [[wine]]-making and [[tourism]]. {{Stub}} [[Category:Rivers of Spain]]