Caves and potholes in Vall de Cardós

Vall de Cardós, in the Pallars Sobirà, brings together villages such as Ribera de Cardós, Esterri de Cardós and Lladorre along the valley of the river Noguera de Cardós, in the heart of the Pyrenees. This high-mountain relief, neighbouring the Vall Ferrera, presents rugged terrain where the catalogue of cavities records the formations typical of this Pyrenean territory.