Compléter SPAIN'S RIVERSVersion en ligne Let's review some features of the Spanish rivers. par Aguasantas Cano 1 Guadiana Watershed Miño Ebro Atlantic Watershed Watershed rias Mediterranean Spain Cantabrian Tagus We divide the rivers in Spain into three groups : the rivers of the , the rivers of the and the rivers of the . The is the longest river in the Iberian Peninsula . The is the longest river that is completely within Spain . The forms part of the border between and Portugal ; the forms another part of this border . In northern Spain there are drowned river valleys called .