Del Queso Ref 1-B

Its mouth is a narrow fissure that leads to a 5x4 chamber, partly covered with blocks. The water, taking advantage of an internal fissure, has been widening it until forming a medium-sized cavity that has no contact with the outside; then the water has been destroying the walls and the roof, thus contributing to its widening. The weakening of the roof increases until it collapses under the action of gravity, thus forming the current entrance to the cavity.

The 5x4 chamber has a mantle of limestone concretions.

There is a water current; the water, taking advantage of an internal fissure, has been widening the cavity and destroying walls and roof.