Urumea
River in Spain
The Urumea is a river in the Basque Country at the north of the Iberian Peninsula. It's one of a series of Basque rivers flowing into the Bay of Biscay and is best known for being the river flowing towards the sea by the city of San Sebastian. Wikipedia
Source: Basque Mountains
Bridges: Maria Kristina Zubia and Puente Santa Catalina
Mouth: Cantabrian Sea
Length: 37 mi