Perte de Fède

Entrance to be opened, just downstream of the sink of a small stream; view for a few metres.

You descend between blocks to find yourself in a small passage also choked with blocks. 10 metres further on, you reach the narrow top of a pit 51 metres deep. In three steps, you land 15 metres lower on a spacious ledge. The pit then continues, much wider, for 27 metres of height. A large collapsed stalagmitic mass precedes an R 2 that is climbed, then you continue in a fine meander. You reach a larger 5-metre step that must be rigged. Opposite, the meander continues higher up and would need to be revisited. Below the step, the meander continues for 20 metres to an R 2 on the left. The dimensions decrease and the meander turns into a crawl, current bottom at -70 m.

A large collapsed stalagmitic mass precedes an R 2 that is climbed.

Bottom of the pit at -54 with a puddle.

Work difficult to foresee because it is narrow and above all there is carbon dioxide, between 2 and 3 %, at the bottom of the hole.