Dolmen de los Andrinales Monument · Erriberabeitia, Cuadrilla de Añana, Álava Image of Erriberabeitia, not of the place itself. Dolmen located next to the Bayas river, near the village of Igay, among numerous prehistoric sites in the area; Igay is already mentioned in the Reja de San Millán in the 11th century. Photo: Mentxuwiki (CC BY-SA 4.0) What to see and do in Erriberabeitia