Forat de les Planes

The mouth, elliptical, about 10 by 15 metres, gives way to a funnel with sloping walls and 5 metres deep, where among blocks the entrance opens into a quadrangular underground chamber of 6x8 metres, from which, at its N and S ends, two branches emerge: the first, a room of 6 metres, and the other formed by a room of 13 metres, semicircular and half divided by the sediment accumulations located in its central part. The height of the ceiling oscillates between 2 and 0.50 metres in some points and the floor is formed by clastic materials and clayey sediments.

In some zones, the reconstructive process is sufficiently developed.