Which of the following important rivers runs through the Rioja region of Spain?
A. The Duero River
B. The Río Oja
C. The Ebro River
D. The Guadalquivir River
The Ebro. Rioja, considered Spain’s preeminent wine region, spreads out for 75 miles along the Ebro River in northeastern Spain. The name Rioja, however, is probably derived from Río Oja, one of the seven small tributaries of the Ebro River. The Duero River runs through the Spanish wine region Ribera del Duero. And the Guadalquivir runs just north of Jerez (Sherry).