Caves of Olius

Olius, a municipality in the Solsonès, has 5 caves, all of them rock shelters. Together they total 42 metres of passage and reach a maximum depth of 1 metre. All five are developed in sandstone.

The longest cave is the Balma de les Cabres de Pallarès, with 18 metres of passage and a large sandstone rock visor 60 metres wide in the shape of a half-moon. It is followed by the Balma Aleix, with 10 metres of passage and a floor plan of 2X8 metres at its base; the Balma de la Font Salada, a parabolic rock shelter of 30 metres on the torrent de Ribalta; the Balma de la Font de l'hostal de les Forques, a small rock shelter with a lot of formation located beside the font de l'Hostal de les Forques; and the Balma de la Font de Sant Ferran, a small rock shelter in sandstone terrain formed by the erosion of the water of the torrent.