The Railway Heritage of the Upper Azergues Valley

This visit takes you to see several engineering structures on the railway line linking Lyon to Paray le Monial: Visit of the "railway loop" to the "Mussy-sous-Dun viaduct" via the "Echarmeaux tunnel".

The most unusual of these engineering works is the "railway loop" at Saint-Nizier-d'Azergues, while the most technically impressive is invisible, since it is underground: 4,150 km of tunnel to cross the Col des Echarmeaux, but the Mussy-sous-Dun viaduct, in Saône et Loire, is undoubtedly the most remarkable!
Your guide, a member of the Amis Guides en Terre Beaujolaise association and a guide for the "Beaujolais Geopark" (with the Pillow Lava association), will make the connection with the labeling of the global "UNESCO Beaujolais Geopark", with the construction materials of these works of art in the "Green Beaujolais".
Three-part tour with travel by private car.
1. The railway loop:
Visit the model of the loop with enthusiasts! You will understand everything about the principle of the railway loop thanks to the model and the participation of volunteers from the Loop association.
2. The underground:
Identifying the tunnel entrances and the history of its construction. We will visit and discuss the construction of the "Echarmeaux tunnel" and its ventilation shaft.
3. The viaduct:
A walk around the viaduct with the story of its construction. Finally, you will discover the history of an exceptional site: the Mussy-sous-Dun viaduct, listed in the supplementary inventory of historical monuments since 1984.

Duration 2h30