Salt of Remolinos and the Mina Real Food and drink · Remolinos, Ribera Alta del Ebro, Zaragoza Image of Remolinos, not of the place itself. The salt mines of Remolinos, integrated into the relief of El Castellar, have been worked since the Middle Ages, and the Mina Real is the main excavation. The rock salt extracted here supplied the preservation of meats and fish throughout the Ebro valley. Photo: Diego Delso (CC BY-SA 4.0) What to see and do in Remolinos