Viaducts in Morez

The Viaducts of Morez consist of five iron bridge structures that span across the steep slopes of the northern Jura and connect Andelot-en-Montagne to La Cluse. They are built as massive steel frameworks that cross deep valleys at considerable heights above the ground.

Engineer Paul Séjourné designed these structures around 1900 as part of the Paris-Lyon-Méditerranée railway line. Construction finished in 1912, allowing train traffic to cross the steep mountain terrain of the region.

These structures connected remote mountain villages to the wider French rail network when they opened. Locals still see them as symbols of how railways transformed access to their isolated communities.

The best views of the viaducts come from several viewpoints scattered around Morez that are easy to reach on foot. The rail line remains active with regular train services, so stick to designated viewing areas for safety.

These viaducts form part of the 'line of swallows', a scenic railway route that runs over the Jura mountains near the Swiss border. This line attracts fans of historic railways and mountain views who ride it specifically to experience the journey through this dramatic landscape.

Location: Hauts-de-Bienne

Architects: Paul Séjourné

GPS coordinates: 46.52910,6.02250

Latest update: December 8, 2025 21:06