Salt from the salt pans of Naval Food and drink · Naval, Somontano de Barbastro, Huesca Image of Naval, not of the place itself. In the stepped basins of Iruelas and la Rolda the salt water of the springs evaporates in the sun until it crystallizes; this salt supplied the pig slaughters and the salting of the whole Alto Aragón for centuries. Photo: Latemplanza (CC BY-SA 4.0) What to see and do in Naval