Avenc de la Trona

Since it is a cavity developed between blocks, in the sector in the NW-SE direction we find three entrances and two more in the ceiling of the final fissure. It is a cavity morphologically differentiated into two parts. In the NW-SE direction a sinuous cavity develops between blocks, with characteristics similar to those of the area called Puritito Caos of the avenc de l'Aisling, where the walls, the floor and the ceiling are large blocks. It is difficult to consider whether in any place there is bedrock. In the N-S direction there is a fissure that intersects perpendicularly with a second much wider one. This part is clearly different from the previous one; it is a large fissure of NE-SW direction. The total depth of the cavity is 27.5 metres.