Toblerone line

The 2,700 nine-tonne concrete blocks that make up the defences are similar to the shape of the Toblerone chocolate bar, which gave its name to the line.

Since the line has been left to nature since its construction, it was decided to keep these concrete blocks and to make a hiking trail along their route.

[1] The line was built along twelve fortresses, the most well-known being the "Villa Rose" in Gland, which was transformed into a museum and opened to the public in 2006.

First reconnaissance took place in 1936, in 1937 construction began by ramming railway tracks into the ground in order to reinforce the banks of the watercourse.

The position was constantly upgraded throughout the war and eventually comprised a virtually continuous line of tank blocks.