River

Water is life, and the region has plenty of it. Originally, the people of Tonner gathered near the mysterious Fosse-Dionne, first on the plateau overlooking Saint-Pierre, then below. Over the centuries, all the resources offered by the Armançon were exploited: protective, as the town's fortifications followed the curve of a meander; nourishing, as it fed the town's mills; sanitary, as the hospital was built along the reach; and commercial, thanks to the construction of the Burgundy Canal, which contributed greatly to the success of Tonnerre's stone and wines.