Primera mención de Kuartango Historical milestone · Kuartango, Cuadrilla de Añana, Álava Image of Kuartango, not of the place itself. The valley is first mentioned in the Reja de San Millán, in 1025, as "Quartanigo". Photo: Asier Sarasua Garmendia, Assar (CC BY-SA 4.0) What to see and do in Kuartango