La fusión de Iruraiz y Gauna Historical milestone · Iruraiz-Gauna, Cuadrilla de Salvatierra/Agurain, Álava Image of Iruraiz-Gauna, not of the place itself. The municipality of Iruraiz-Gauna was born on 29 December 1966 from the merger of the municipalities of Iruraiz and Gauna, officially established on 5 February 1967; Iruraiz came from the old Hermandad de Iruraiz, which grouped together eighteen settlements in the 13th century. 1966-1967 Photo: Olerki (Public domain) What to see and do in Iruraiz-Gauna