The Ebro River is the most important waterway in Spain. It drains much of the mountainous are in the northern part of the country, running 930 km (a bit under 600 mi.) to a discharge point into the Mediterranean in Catalonia, south of Terragona. If you look at a map of the lower river, you'll see where the term "river delta" comes from; the area of land around the mouth makes an almost perfect triangle. In this video, you'll get an aerial view of the Ebro Delta, compliments of contrbutor Karl Veca.