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Routes
Mountain biking trails
France
Auvergne Rhône Alpes
Tournon-Sur-Rhône
Lamastre

Viaduc de la Chaise – Nonières Tunnel loop from Lamastre

Routes
Mountain biking trails
France
Auvergne Rhône Alpes
Tournon-Sur-Rhône
Lamastre

Viaduc de la Chaise – Nonières Tunnel loop from Lamastre

Moderate

4.3

(3)

31

riders

Viaduc de la Chaise – Nonières Tunnel loop from Lamastre

04:12

56.3km

790m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: August 21, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional des Monts d'Ardèche

Waypoints

A

Start point

Train Station

Get Directions
1

65 m

Old Lamastre train station

Highlight • Historical Site

The old Lamastre station is the arrival point of the Ardèche train. Called Le Mastrou, this train takes you on a discovery of the Gorges du Doux. Built from 1886 to 1891, the railway line goes up the gorges from Saint-Jean-de-Muzol to Lamastre. This old steam locomotive takes you back in time. It is possible to make the trip with bicycles. Remember to book your tickets well in advance, especially during the summer.

Translated by Google •

Tip by

2

16.4 km

Viaduc de la Chaise

Highlight • Bridge

3

23.1 km

View of the Eyrieux River

Highlight • Viewpoint

4

24.6 km

View of the Eyrieux Gorges

Highlight • Viewpoint

Impressive view into the gorge

Translated by Google •

Tip by

5

30.1 km

Iron Bridge of Saint-Martin-de-Valamas

Highlight • Bridge

In Saint-Martin-de-Valamas, there is this iron bridge typical of the Eiffel style, popularized at the turn of the 20th century. It is recognized by the metal beams and the X-shaped structure.

Translated by Google •

Tip by

6

42.8 km

Viaduct on the Dolce Via

Highlight • Bridge

7

44.6 km

Nonières Tunnel

Highlight • Cycleway

The great thing about old railway tunnels on a cycle route: They often save you a tedious road over a pass. Although you sometimes lose a bit of a good view, a trip through a tunnel is still a very special and, on a hot day, particularly refreshing experience on a bike tour. This tunnel is even illuminated and, at 320 metres, is the longest on the entire Dolce Via.

Translated by Google •

Tip by

8

53.6 km

Dolce Via

Highlight • Other

B

56.3 km

End point

Train Station

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Way Types & Surfaces

Way Types

29.1 km

20.2 km

5.86 km

866 m

334 m

Surfaces

28.9 km

12.8 km

6.27 km

5.86 km

2.35 km

163 m

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (650 m)

Lowest point (370 m)

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Weather

Powered by Foreca

Sunday 11 October

19°C

7°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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