Avenc de Sant Miquel

At the bottom of the entrance shaft, 12 metres deep, a slightly descending gallery 15 metres long begins towards the W, which after a narrow passage communicates with a 7-metre chimney. At its upper part one reaches the main joint of the cavity, almost parallel to that of the entrance shaft, tall and narrow and which towards the E has about 29 metres of route in an ascending direction. From the fork and in the opposite direction, that is, towards the W, the joint continues some 12 metres more. To continue one must climb it about 5 metres and reach a ledge, from where on the left there is an 8-metre pit and on the right another, which divided into two sections reaches a depth of -20 metres with respect to the entrance mouth.