Across the kilometre-long cobblestone strip in the Wallers forest hangs an old railway bridge. Stone waste from the Arenberg coal mine was transported via a train track to a tens of meters high slag heap. The freight wagons reached the slag heap via the railway bridge above the Trouée d'Arenberg. Today, the rail track is no longer in use.
Cyclist Jean Stablinski
French cyclist Jean Stablinski, who worked for several months in a nearby coal mine, proposed the cobblestone section to the organizers of the Paris-Roubaix cycling race in 1968. Since then, Arenberg has been part of the cycling race route.