Grotte di Lluçà

The municipality of Lluçà, in Lluçanès, has 19 cavities, all of them caves, which together total 215 m of length and reach a maximum depth of 6 m. The lithologies present are sandstones, in 17 cases, and conglomerates, in 2.

The longest cavity is la Tronassa de la Tor, at 50 m, discovered speleologically by Ferran Cardona (EC Gràcia) around 1996. It is followed by the Balma Nº1 dels Racons, at 21 m, the Cova del Lladre, at 20 m, the Balmes de la Font dels Bous, at 14 m, and the Balma Nº1 de la Font de les Coves, at 13 m. As for depth, la Tronassa de la Tor reaches 6 m; the Balma del Pont de les Heures and the Balma Nº2 dels Racons reach 3 m, and the Balma Nº1 de la Font de les Coves and the Balma Nº1 dels Racons, 2 m.

Among the cavities, notable ones are the Cova del Lladre, with a laminar gallery and a room with blocks, unpublished speleologically and a possible hiding place during the Spanish Civil War (1936-1939), and the Balma del Pont de les Heures, on the riera de Merlès, 41 m wide, 6 m maximum height and 8 m deep, occupied by blocks and trunks.