Longest caves in Grand Est
The longest cave in Grand Est in the EspeleoWorld catalogue is Exsurgence Rupt du Puits (17,400 m), followed by Le Spéléodrome de Nancy and Langer Schacht (?).
The longest cave in Grand Est in the EspeleoWorld catalogue is Exsurgence Rupt du Puits (17,400 m), followed by Le Spéléodrome de Nancy and Langer Schacht (?).