Follow the old railroad line Bertholène/Espalion via Gabriac and Bozouls

The old Bertholène to Espalion railroad line has been converted into a path that can be explored by mountain bike, on foot or on horseback, creating a link between the Causse Comtal and the Lot and Aveyron valleys. Unusual and exotic, this trail offers a varied terrain and a succession of contrasting landscapes. But its originality lies above all in the railway structures that dot it, making this a unique route that’s fun for all the family!

A little history

Commissioned in 1908, the Bertholène to Espalion railroad line carried passengers until 1938, and goods until 1983. It carried coal, agricultural products, telecommunication poles and mineral water. The arrival of the bus and the use of trucks heralded its decline. Around 1990, the SNCF removed the track and the communes of Bertholène, Gabriac, Bozouls and Espalion purchased the entire former line, with the aim of turning it into a walking and cycling route.

What can you see on the route? Between tunnels, flats and climbs

Almost linear, the old railroad line climbs gently from Bertholène to Bozouls between pastures and arid causse landscapes. On this flat terrain, you’ll see the Calvaire de Gabriac on its mound, come across the Château de Tholet and old guardhouses, and even unknowingly cross two rivers, the Dourdou and the Aveyron.

After Bozouls, the route becomes a true mountain line, with a 3% gradient to join the Lot at Espalion. This succession of twists and turns brings to light a few more guardhouses and, above all, a number of remarkable railway engineering structures. Between these two villages, this stretch of track will take you back through the centuries to discover superb panoramic views of the Château de Calmont d’Olt and cross some of the most impressive viaducts and tunnels!

Discover the route

Our advice to plan your itinerary

The Bozouls/Espalion section is 11km, while the complete route from Bertholène is 22.7km.
You can cycle, walk or ride in either direction, but note that from Espalion the gradient is steep to climb back up to the plateau, and that a return trip requires you to cover the same distance.

What equipment for a successful experience?
- On foot, you’ll need good walking shoes to cover the trail.
- Choose an appropriate bike (mountain bike, VTC or VAE) for the trail, as the old railroad line is not asphalted.
- Take a headlamp when crossing the tunnels between Bozouls and Espalion,
- Helmets and protective gear, hats in hot weather and well-filled water bottles are essential for all types of riding.
Can I ride the railroad all year round?
The old railroad line is passable all year round (except for bike hire – please contact our offices for details). Please be careful in case of heavy rain, as the ground can be slippery.
Don't have a bike?
No need to panic!
You can rent a bike from Espalion ( more info) or Bozouls (more info).
Don't want to retrace your steps?
- Choose the La voie du rail hiking loop from Espalion (Download the route)
- You can also use the bus service between Bozouls and Espalion to drop off your vehicle at one of the villages. Please note, however, that there are only 2 daily routes . Consult timetables
Another fun route option
Arriving from Espalion or Gabriac, you can combine your walk with theBozouls Canyon trails, which range from 2 to 6 km.

Did you know?

A 3% gradient (27 to 29mm/meter) from Biounac (593 meters above sea level) to Espalion (225 meters above sea level).
On this stretch linking the Causse Comtal plateau to the Lot Valley, the largest of the 5 viaducts is the 173-meter-long Viaduc des Conquettes, which has been illuminated since 2015 (push-button). It lies between the Viaduc du Plô (160 m) and the Viaduc de la Baume (88 m). The Viaduc de Goudal (125 m) and Viaduc de La Loubière (108 m) follow.
The largest of the 5 tunnels is the Tunnel de Biounac, 574 m long, followed by the Tunnel d’Aubrefeuille (110 m), Tunnel de Martel (104 m), Tunnel de Goudal (112 m), Tunnel des Matelines (125 m).