The Vettones occupied the areas of the current Spanish provinces of Salamanca and Ávila, as well as parts of Cáceres, Toledo and Zamora.

Their numerous archaeological sites exist throughout the province, and several locality names have Vettone origin, some of which are quite important.

The area between La Armuña and Salamanca marked the border between Vettones and Vaccaei, the other pre-Roman people of the province.

It has an average altitude of 823 meters, but there are large variations throughout the province, with 2,428 metres (7,966 ft) being the highest point at the peak of the Ceja Canchal in the Sierra de Béjar range,[7] and 116 metres (381 ft) being the lowest point in the valley of the Salto de Saucelle.

Constructed between 1964 and 1970, the dam forms part of the hydroelectric system known as the Duero Drops, along with the Castro, Ricobayo, Saucelle and Villalcampo.

It is one of the largest reservoirs in Spain with an area of 86.5 square kilometres (33.4 sq mi) and 2.5 billion cubic metres of water.