The expropriation and emptying of Búbal Historical milestone · Biescas, Alto Gállego, Huesca Image of Biescas, not of the place itself. The Ebro Hydrographic Confederation expropriated houses and lands for the Gállego reservoir and the village of Búbal was left definitively empty in 1971; since 1984 it has been refurbished within the state programme of abandoned villages. 1961-1971 Photo: Cherubino (CC BY-SA 3.0 es) What to see and do in Biescas