Grotte di Pallejà

The municipality of Pallejà, in the Baix Llobregat, has 18 catalogued cavities: 9 pits and 9 caves. The group totals 434 metres of passage and reaches a maximum depth of 24 metres. The lithologies present are limestone, in 15 cases, and travertine, in 3.

Among the cavities, the Complex de les Rovires Nº1-3 stands out, with 141 metres of passage and 17 metres of depth, and the Avenc Negre, the deepest in the municipality at 24 metres, with an entrance of 5X2 metres and a path length of 500 metres and 88 metres of elevation gain. Other notable cavities are the Escletxa de les Rovires Nº2, 22 metres deep, the Cova del Lleó, with 21 metres of passage, and the Avenc Blanc, 9 metres deep, discovered and cleared by Pedro Valdepeñas in 1990.