Festivities of El Grado Activity · El Grado, Somontano de Barbastro, Huesca Image of El Grado, not of the place itself. The patronal festivities of El Grado are celebrated next to the reservoir formed by the dam on the Cinca, completed in 1969, which regulates irrigation for the Cinca and Aragón y Cataluña canals and transformed the landscape and economy of the valley. Photo: Wikipedia / Wikimedia Commons (CC BY-SA) What to see and do in El Grado