Grotte di Borredà

In the municipality of Borredà, in the comarca of Berguedà, 6 cavities are documented: 4 caves and 2 pits. Together they total 1220 metres of passage and reach a maximum depth of 76 metres. The lithologies present are sandstones, conglomerates and gypsum.

The most notable cavity is la Cova de R-6) R-5 R-4 R3 Rotgers (r-2, with 1089 metres of passage and 76 metres of vertical drop; it includes the entrances R-1 to R-6, superimposed galleries, meanders and chambers such as the Sala de R-2 and the Sala blanca. The Cova de Rotgers R-1, with 78 metres of passage and 26 metres of depth, has its entrance in a doline and was discovered on 2 March 1969 by Montserrat Ubach; in 2025 it is reviewed and the connection with the Cova de Rotgers (R-2 and R-3) is ruled out.

Other cavities are the Bòfia de l'Adelina, a pit 8 metres deep near the riera de Merlès with a large entrance of 7.40X5.10 metres and a bat roost; the Bòfia d'en Pepet, a pit 8 metres deep near the riera de Merlès explored and surveyed on 25 January 1992; and the Bauma dels Gitanos.