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The tunnels of Véloroute 81 – Vernajoul Viaduct Greenway loop from Le Mas-d'Azil

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Bike touring routes & trails

The tunnels of Véloroute 81 – Vernajoul Viaduct Greenway loop from Le Mas-d'Azil

Hard

4.8

(11)

111

riders

The tunnels of Véloroute 81 – Vernajoul Viaduct Greenway loop from Le Mas-d'Azil

09:07

144km

1,140m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. 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 Pyrénées ariégeoises

Waypoints

Start point

Bus stop

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45.1 km

Old railroad embankment

Highlight (Segment) • Other

That's what really got me in France - old railway lines that have been converted into great cycle paths. It goes on good ground over bridges and tunnels (illuminated) without noticeable increases through the country. Everything is mostly well signposted.

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70.2 km

Piémont Pyrénéen Greenway (V81)

Highlight (Segment) • Cycleway

The V81 is particularly pleasant, and particularly between Saint-Girons and Foix where it is often shaded, its tunnels are lit as hikers pass by. And although it can sometimes be …

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81.2 km

The tunnels of Véloroute 81

Highlight (Segment) • Cycleway

This magnificent 44-kilometre greenway has been developed between Saint-Girons and Foix, replacing an old railway line. It has many tunnels which have the particularity of being equipped with motion detectors.

You will therefore be enlightened as you progress underground.

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92.2 km

Old metal bridge

Highlight • Bridge

Nice bridge, look if the wooden planks are bad.
More information: af3v.org/les-voies-vertes/voies/279-search_tag and fr.wikipedia.org/wiki/Ligne_de_Foix_%C3%A0_Saint-Girons?wprov=sfla1

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107 km

Greenway of the Ariège Pyrenees

Highlight • Cycleway

A classic track cycle path with a fairly good gravel surface

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110 km

Vernajoul Viaduct Greenway

Highlight • Cycleway

Very nice viaduct, but from here there is no view of Foix and the castle.
The interface is not good either.
More information: af3v.org/les-voies-vertes/voies/279-search_tag and fr.wikipedia.org/wiki/Ligne_de_Foix_%C3%A0_Saint-Girons?wprov=sfla1

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112 km

Cycle path along the railway line near Foix

Highlight • Cycleway

Start of the Foix railway cycle path, with a view of the castle
More information: af3v.org/les-voies-vertes/voies/279-search_tag and fr.wikipedia.org/wiki/Ligne_de_Foix_%C3%A0_Saint-Girons?wprov=sfla1

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122 km

Voie Verte Between Foix and Saint-Girons

Highlight • Cycleway

View from the Bahntrassenradweg on the foothills of the Pyrenees.

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144 km

End point

Bus stop

Way Types & Surfaces

Way Types

80.4 km

32.5 km

25.2 km

3.99 km

967 m

611 m

120 m

Surfaces

79.7 km

62.0 km

1.06 km

992 m

Elevation

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

Highest point (570 m)

Lowest point (300 m)

Weather

Sunday 23 August

31°C

18°C

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Comments

July 12, 2024,De Boussens à Cos

From Boussens to the Mediterranean (day 1)
The route is almost entirely on the cycle path. The surface is of good quality. The route is accessible to children but sometimes becomes more difficult when you make a few tourist escapades (visit to Saint Lizier, the reptile farm). Plan to stock up on supplies in Foix because the municipal campsite of …

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June 4, 2023,Bieira_Tag_42

Weather sunny and warm. Route almost 70 kilometers on former railway line, hard gravel surface very strenuous. Cattle farming along the route. Eisenbahntrasse has similarities with the Parenzana, no bistro far and wide. Waiting rooms and train stations converted into apartments.

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May 10, 2022,Sortie à vélo

Mainly greenway on the old railway line, so there are no big climbs, on the other hand long false climbing flats that are demoralizing.
Super rolling with various coatings.
Between St Girons and Foix, apart from the old PNs and well maintained stations in most cases, there is not much to see, partially shaded.
Do not count on mileage indications, …

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The tunnels of Véloroute 81 – Vernajoul Viaduct Greenway loop from Le Mas-d'Azil

Old railroad embankment

Piémont Pyrénéen Greenway (V81)

The tunnels of Véloroute 81

Old metal bridge

Greenway of the Ariège Pyrenees

Vernajoul Viaduct Greenway

Cycle path along the railway line near Foix

Voie Verte Between Foix and Saint-Girons

Nearby routes

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