Point of interest
Fosse Dionne
20 locals recommend,
Location
11 Rue de la Fosse Dionne
Tonnerre, Bourgogne-Franche-Comté
Tips from locals
The Fosse Dionne is a karst spring located in downtown Tonnerre. It is remarkable because of its outflow (reportedly at least 100 litres per second on average). Its presence is at the center of the creation story of Tonnerre. An elaborate wash basin was built around the spring in the 18th century. A small room next to the Fosse shows a map of the underground caves, in which a lot of divers lost their life trying to explore it.
The Fosse Dionne is a karst spring located in downtown Tonnerre. It is remarkable because of its outflow (reportedly at least 100 litres per second on average). Its presence is at the center of the creation story of Tonnerre. An elaborate wash basin was built around the spring in the 18th century. A…
Au cœur de Tonnerre, la Fosse Dionne est une source vauclusienne au débit varié, mais perpétuel.