The cliffs of Riglos, Agüero and Peña Rueba are distributed in three municipalities: Peñas de Riglos, Agüero and Murillo de Gállego. The steep walls are formations of impressive reddish rock masses due to their predominantly clay and iron ore composition.
These conglomerates have been reshaped by water and wind over millions of years to form incredible cliffs 300 meters high, forming a unique phenomenon in Europe. | Spain
