Gouffre Mirolda
Gouffre Mirolda is a karstic cave located in the :fr:Haut-Giffre|Haut-Giffre mountain range, in the commune of Samoëns, Haute-Savoie, France. It is connected to the Lucien Bouclier cave network, and has a depth of 1733 m.
The cave was discovered in 1971 by Marc Degrinis, a shepherd. The cave was measured to be 1733 m deep, making it the deepest natural cave in the world from January 2003 until July 2004, when it was passed by the cave Krubera-Voronja in Abkhazia. It is the deepest cave in France. The cave is named after the Rhodanien cavers Michel Schmidt, Roland Chenevier, and Daniel Trouilleux, who were lost in a flood in :fr:Grotte de Gournier|Gournier Cave in November 1976.
