Caves and potholes in Castell de Mur

Castell de Mur, in the Pallars Jussà, takes its name from the Romanesque castle that crowns one of the hills of the municipal area, near the Terradets reservoir and the Montsec range. The municipality, made up of several small hamlets scattered across rugged terrain, also preserves the remains of the old Mur collegiate church. The nearby limestone massif of the Montsec makes the area rich in karst cavities.