Grotte di Anoia

The Anoia gathers 98 inventoried cavities, divided into 76 caves and 22 pits, with a total length of 4,408 m and a maximum depth of 125 m. The group is distributed among 16 child units and includes diverse lithologies: conglomerates (38), limestones (31), travertines (22), dolomites (4), sandstones (2) and gypsum (1).

Among the longest cavities are the Cova de les Rondes, at 552 m, and the Coves del Mamut, at 537 m, with an exterior fissure of 103 m. The Pouetons de les Agulles, with a length of 529 m and a depth of 125 m, are the deepest cavity of the group, with a documented history since 1789 and explorations up to 2020. Other notable cavities are the Coves de Castellolí, at about 450 m, and the Cova de la Censada Nova, at about 265 m.

As for depth, after the Pouetons de les Agulles (125 m) come the Pou de l'Enclusa (59 m), the Avenc d'en Viumala (47 m), the Pou de la Portella (43 m), with a first pit of 27 m and a second of 10 m, and the Avenc Carrilet 2002 (37 m), located by Quim Prats and explored by the SIRE – UEC l'Hospitalet around 1980.