Grotte e abissi nell'unità geologica Altiplà de la Segarra

The Altiplà de la Segarra is a unit of the Depressió Central formed by gypsum and limestone, where the gypsum creates a rapid karst of dolines and caves. It contains 18 cavities: 8 pits and 10 caves, with a total passage of 633 metres and a maximum depth of 40 metres.

Among the most notable cavities are the Avenc d'Enconills, with 128 metres of passage and 40 metres of depth at Torà, explored in 1968, with a first inclined shaft of -11 metres and galleries that end at -40 metres; the Cova del Barranc de Famides, with 108 metres of passage at Ponts, with an entrance of 4X2 and a meandering gallery; and the Cau de Mossèn Benet, with 76 metres of passage at Oliola, which descends to -6 metres and was explored by the SIE del CEA in 1971.

Other cavities are the Forat Micó, a small pit 12 metres deep at Sanaüja, explored for the first time by the SIE del CEA in 1971, and the Cova dels Enconills, a cave in gypsum at Castellfollit de Riubregós, with a passage of 45 metres and a drop of 10 metres (-5/+5).