The city of Valladolid sits above the Rio Duero that runs East to West through Northern Spain and Northern Portugal. This map includes a section of the river lying to the South of Valladolid and includes the towns/villages of: Arroya de la Economienda, Laguna de Duero, Viana de Cega, Boecilo, Aldemayor de San Martin, Tudela de Duero, La Parilla, Cisterniga, and Renedo de Esgueva.