Pèrdua del Barranc de Cireres

Active sinkhole passable to a depth of 26 m. Through an impassable hole on the left of the same torrent bed, the waters seep almost permanently, but 2 metres above there is a second entrance that allows access to the sinkhole.

Through an impassable hole on the left of the same torrent bed, the waters seep almost permanently. The members of the S.S. Plantaurel, intending to carry out as dry an exploration as possible, partially diverted the flow that entered the sinkhole and were able to verify that the important spring located in a straight line (3500 metres) and at the level of the right slope of the Noguera Pallaresa (650 metres lower down) had great variability in its flow depending on the water entering through this sinkhole.

Once on the other side of where the water enters there is a very narrow passage which, once passed, leads to a 2-metre drop followed by another of 3 and a small 6-metre pit, a short ramp and another 3-metre drop lead to the point of maximum depth where the passage becomes completely impenetrable.