Topic summary
Duero
Extracted from the Wikipedia article Douro.
Geography
The most important tributaries in this region are the Pisuerga, passing through Valladolid, and the Esla, which passes through Zamora. This region is generally semi-arid plains, with wheat and in some places, especially near Aranda de Duero, with vineyards, in the Ribera del Duero wine region. Sheep rearing is also important.