The line of Saint-Trojan is built to Maumusson single track gauge of 0.60 m. This is a standard for military and railway industry.
This spacing was invented in 1875 by Paul Decauville (1846-1922), originally, to compensate for the failure of other means of transport in the evacuation of sugar beets otherwise lost in wet fields ...

> The keypoints

Passe de la Vigne Américaine

La Gare du Prévent

Gatseau Plage

Le Pertuis de Maumusson