The Canelles dam Historical milestone · Viacamp y Litera, La Ribagorza, Huesca Image of Viacamp y Litera, not of the place itself. The state company Enher raised in 1960 on the Noguera Ribagorzana a dam one hundred and fifty meters high; its waters run back up the Mont-rebei gorge and flooded paths and farms of the eastern Ribagorza. 1960 Photo: Miquel Català i Coït (CC BY-SA 3.0) What to see and do in Viacamp y Litera