Nervión is a river located in the northern part of Spain, specifically in the Basque Country. It flows through the city of Bilbao and is approximately 16 kilometers long. The river plays a significant role in the region's history and economy, serving as a vital waterway for trade and transportation. The Nervión River is also known for its picturesque surroundings, with parks and promenades lining its banks. It eventually empties into the Bay of Biscay, contributing to the area's maritime activities. The river is an essential part of the local ecosystem and supports various wildlife species.