Coves de Castellolí

Entering through the easternmost mouth of all those that open to the outside, we find a wide gallery that extends towards the S. From it different branches set off that make up the network of conduits that form the cavity.

Apart from this gallery that forms the N sector of the cavity, the rest is made up of a narrow network of joints, more or less widened, which give it a labyrinthine layout in which galleries with a very low ceiling predominate, making progress difficult.

The whole cavity is excavated in a package of Eocene limestone, at the edge of the Conca d'Òdena and affected by a network of orthogonal joints that form the reticulated system of the whole set of galleries, excavated in a first phase under phreatic conditions and then undergoing important processes of sedimentation and chemolithogenesis. A residual cavity cut back by erosion of the epigean slope.

Taking the first passable gallery of the three that we find after the entrance porch, we will head, in a NNW direction, towards the lowest point of the cavity, which is reached after about 40 metres of gallery and after having overcome a 3-metre drop in the meander, to reach a room with a low ceiling and about 12 by 7 metres.