. . "Douro River" . "River Douro" . . "Porto e Douro" . "Duero river basin" . . . "Duero" . "Douro#Dams" . . . . . . . . . . "Douro" . . . . . . . . . . . . . . "Douro / Duero" . . . "0.0" . "Douro/Duero" . . "Duero Arribes / Douro River Canyon" . . . . . . . . . . . . . . . "River Duero" . . . . . . . . . . . . "Douro" . . . . . . "Douro region" . . . . "R. Douro" . . . . . . "Rio Douro" . . . "Douro river" . . . "river Douro" . . . "Douro valley" . . . . . . . . . . . . . "Duero River" . . . . . . "Douro Basin" . . . . "Douro Valley" . . "Duero river" . "897000.0" . . .