The entrance, in the form of a short gallery, connects with the small mouth of a small 8-metre shaft that lands in a gallery that in a NW direction can be traversed for some 19 metres. Before its end point, above some wedged blocks, a chimney can be climbed a little more than 2 metres. From the base of the entrance shaft, in the opposite direction and with a 90º turn to the right, there is another gallery that ends after a few metres. Vertical extent: 10.80 metres (+ 2.50 ; - 8.30).

It is a small cavity accessory to the cova del Salnitre and which possibly formed part of the complex in past times. The proximity to the cova del Salnitre has turned the cavity into a veritable rubbish dump.