Through a small entrance and a short corridor, one reaches a small drop that leads into a wide chamber with a high ceiling and a chimney almost at its central point. At its lowest part begins a downward-sloping conduit about 20 metres long that connects to another large room, also with a high ceiling; its floor, occupied by blocks on a steep slope, leads to the mouth of a pit of about 8 metres that leads to the lower level of the room. A narrow descending conduit leads to a small room, also with a rising ceiling, to continue descending gently and be intercepted by a small upper gallery accessed laterally, and continue until emerging into an elongated room, with a strong incline in the final stretch, penetrating into a zone of blocks, at the bottom of which the maximum depth point is reached (- 62).