Caves and potholes in la Serralada Prelitoral

The Serralada Prelitoral runs through inland Catalonia, between the coastal depression and the central depression, with massifs such as Sant Llorenç del Munt, Montsant and the muntanyes de Prades. It is the geographic unit with the most cataloged cavities of all, thanks to a succession of limestone and conglomerate terrains that repeats from north to south along the whole range.