Reseau Jean Bernard
CountryFrance
RegionHaute-Savoie
Discovered1959
Size/Depth1,602 m deep
About Reseau Jean Bernard
One of the deepest caves in the world at 1,602 m. Located high in the Alps near the Swiss border. The entrance sits above 2,300 m making expeditions weather dependent. Held the world depth record in the early 1980s. Rigging the shafts requires thousands of meters of rope.
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