Grotte di Moià

Moià, a municipality in the Moianès, has 18 catalogued cavities: 17 caves and 1 pit. Together they total 1475 metres of passage and reach a maximum depth of 18 metres. Cavities developed in limestone predominate (16), while 2 are formed in sandstone.

The Cova del Toll is the most notable cavity in the municipality: with 1148 metres of passage and 18 metres of depth, it is at once the longest and the deepest. The system includes the cova del Toll and the avenc del Bassot, has been explored since 1948 and can be visited as a tourist. Other relevant cavities are the Cova Morta, at 85 metres, located on the esplanade of the spring of the Cova del Toll; the Forat Negre, at 54 metres and with two entrances; the Cova de les Teixoneres, at 47 metres and with two entrances closed by a grille because of the archaeological excavations; and the Balma del Torrent Mal, with 26 metres of depth at the Torrent Mal, downstream of the cova del Toll.

Among the less developed cavities is the Avenc de Perers, a small pit 7 metres deep formed by an eclosion shaft.