Grotte e abissi in terreno Sale

The group of salt caves of Cardona brings together 3 cavities, all catalogued as Caves, with a total length of 5200 m and a maximum depth of 187 m. The Cova dels Meandres de Sal is the longest cavity, with 4300 m, and also the deepest, with 187 m; the Forat Micó reaches 640 m of length and 25 m of depth, and the Cova del Riu, 260 m of length and 5 m of depth.

Salt is an extremely soluble evaporitic rock. It forms one of the fastest karsts that exist, such as the Cardona salt diapir, with caves that change from one year to the next. The Cova del Riu has formed through the collapse of the floor of a mining gallery called Minilla, and includes a large chamber and a lower gallery that ends at the salt-sandstone contact.