An entrance of approximately 1x2 metres gives way to a pit of -7 metres that communicates at its bottom with a new vertical of -7 metres followed by a short ramp and a drop of -4 metres, to the upper part of an inclined pit and a small chamber(1). From this a gallery runs W, ending in a pit that drops onto a new and wider lower gallery, with vertical drops and more inclined, opening at its lowest point the entrances of the lower pit of the cavity, stepped and of -21 metres.

The base of the aforementioned small chamber(1), situated at -28 metres, forms a ledge over an elongated pit of -8 metres with an inclined base; from the upper part of this, a pit of -8 metres leads to the lower gallery described above, while from the lowest end a pit of -5 metres leads to some dry small chambers.