The Forat Micó cave is known for many years in the mountain of Salt of Cardona. The cave opens on the side of the mountain, is 640 m long and their walls are decorated with delicate white recrystallizations of halite. The Cardona salt caves stand out both for their exceptional beauty and for being unique worldwide, because the outcrops of water-soluble salt are very rare.
The hydrological alteration in Cardona caused by mining activity during the 20th century quickly triggered the opening of new water passages, a new endo-karst in the middle of the salt substrate below the level of Forat Micó that combines reshaped mining galleries with new ones.
[photo Ferran Cardona / Espeleo Club de Gràcia]