Voltoya River Voltoya River The Voltoya is a river in Spain. It is a tributary river of Eresma River which is, in turn a tributary of the Adaja River that emerges from Douro River. Its starts in the mountains of Guadarrama and Malagón. The water from Dehesa de la Cepeda , enclave of the city of Madrid and the Azálvaro Field also flow into the Voltoya . It runs through the Castilian-Leonese provinces of Ávila and Segovia . Its mouth is in Coca (Segovia). The Serones Reservoir, which supplies drinking water to the city of Ávila is located on the Voltoya. Tributaries
Vejle River Vejle River Vejle River (, also called Sønderåen, "South River") is an approximately river in Vejle Municipality in Denmark. Its source is Engelsholm Lake near the village of Nørup. It first runs south to converge with the Egtved River near the village of Egtved, then flows northeast for through the Vejle River Valley () until it reaches the city of Vejle. There, the river meets the Grejs River and then empties into Vejle Fjord. Vejle River Valley and Vejle Fjord together form the longest tunnel valley in eastern Jutland. The lower river has an urban character where it runs through