Adaja

The Adaja is a river located in the centre of the Iberian Peninsula, in Spain. A major left-bank tributary of the Douro, it flows, and its river basin drains an area of.
It has its source in the so-called Fuente Berroqueña, near the saddle point between and the Sierra de Ávila. Initially following a southwest-northeast course through the Amblés Valley, the Adaja then bends northward in Ávila, later receiving the contribution of its most important tributary, the Eresma, near Matapozuelos. It empties into the Douro in the province of Valladolid near the town of.