The 100 m false-colour image of 16 july 2016 shows us Guadalquivir River, the only great navigable river in Spain. Currently it is navigable to Seville. The Guadalquivir is 657 km long and drains an area of about 58,000 km².
The Guadalquivir River Basin occupies an area of 63,085 km² and has a long history of severe flooding.