Festivities of Sigüés Activity · Sigüés, La Jacetania, Zaragoza Image of Sigüés, not of the place itself. Sigüés's festival is held in a village near where the closing of the Yesa reservoir flooded, between 1959 and 1960, the best lands of the district and forced the abandonment of Tiermas and Escó. Photo: Allpe (CC BY 3.0) What to see and do in Sigüés