5.0
(18)
123
riders
8
rides
Gravel biking around Le Mas-D'Azil offers diverse terrain within the Ariège department of southwestern France. The region is characterized by its varied topography, including the Arize River valley, the unique Grotte du Mas-d'Azil natural tunnel, and the green hills of the Massif Plantaurel. Riders can navigate a network of trails that traverse slopes, hills, and forests, providing views of the Pyrenees. This area provides a compelling environment for no traffic gravel bike trails, with routes often utilizing old railway lines…
Last updated: May 25, 2026
5.0
(9)
61
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
9
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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6
riders
50.1km
03:01
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
36.9km
02:09
350m
350m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
64.2km
04:48
1,510m
1,510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Be careful, since yesterday, June 19th, the descent to Rivèrenert has been freshly graveled and dangerous. I had a rear puncture due to small, sharp gravel sticking to the tire when braking. So, don't go crazy on this descent, friends.
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Because around 12pm and >31°C, the climb from Biert is mostly in the shade, and this pass generally ends a series of small linked passes (like Portech, Catchaudégué or La Core, Saraillé, etc.). And the challenge of the last 3 km is worth experiencing to strengthen your mental strength. Get to your pedals
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Old little station that reminds us of another time!
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This is the longest tunnel on the greenway: it's super fun to go through. Be careful: it's a bit chilly!
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A very beautiful viaduct, it's a bit impressive and truly unusual on a greenway. The train used to go there, now the bikes go there!
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Beautiful little station, testimony to another time!
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Hello everyone, I'm from Ariège, I decided this year to do the greenway with my dog Emy in both directions. It's a very beautiful walk, however there are some black points: lack of stone benches to deter potential thieves, and on the other hand the large Rimont tunnel which is 803 m long there is no more light. The motion detector does not work. Luckily that day I had my flashlight with me. There is horse excrement everywhere, perhaps one day we will have to ask the riders to pick up their droppings. It's a very beautiful walk.
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Small railway bridge, it's worth the detour, it's old!
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There are currently 4 curated no-traffic gravel bike trails around Le Mas-d'Azil in this guide, offering a range of distances and difficulties for you to explore the region's unique landscapes.
The terrain around Le Mas-d'Azil is diverse, ranging from greenways developed along old railway lines to more challenging routes with significant climbs and descents. You'll encounter unpaved sections, forest roads, and paths through varied landscapes, including the Arize Valley and the Massif Plantaurel, offering views of the Pyrenees.
Yes, for a more moderate and accessible experience, consider the The tunnels of Véloroute 81 – Old Rimont Station loop from Castelnau-Durban. This route covers 32.5 km with 269 meters of elevation gain, making it a good option for those looking for a less strenuous ride on traffic-free paths.
Many trails offer stunning natural sights. You can experience the unique Grotte du Mas-d'Azil, where the Arize River and a road pass directly through the cave. Other highlights include the serene Lac de Mondély and various sections of the Foix–Saint-Girons Greenway, which features old railway tunnels.
Absolutely. For a significant challenge, the Col de la Crouzette (1245 m) – Old metal bridge loop from Cadarcet is a difficult 64.2 km route with over 1500 meters of elevation gain. Another demanding option is The tunnels of Véloroute 81 – Foix–Saint-Girons Greenway loop from Castelnau-Durban, spanning 80.7 km with 663 meters of ascent.
The komoot community highly rates the gravel biking experience in Le Mas-d'Azil, with an average score of 5.0 stars. Reviewers often praise the region's quiet, traffic-free paths, the unique experience of cycling through the Grotte du Mas-d'Azil, and the breathtaking views of the Pyrenees.
Yes, all the routes featured in this guide are circular, allowing you to start and end your ride in the same location. For example, the Old Rimont Station – The tunnels of Véloroute 81 loop from Lescure is a moderate 36.9 km circular route.
The region is generally pleasant for gravel biking from spring through autumn. Spring brings lush greenery, while autumn offers beautiful foliage. Summers can be warm, but the shaded forest sections and the cool air inside the Grotte du Mas-d'Azil provide relief. Always check local weather conditions before heading out.
Beyond the natural wonders, the region is rich in history. The Grotte du Mas-d'Azil is also a significant archaeological site with a museum nearby. You might also encounter well-preserved dolmens along certain trails, offering a glimpse into prehistoric times.
As Le Mas-d'Azil is situated within the Pyrénées Ariégeoises Natural Park, you have a good chance of spotting local wildlife, especially in the ancient oak forests. Keep an eye out for deer and wild boar, as well as various bird species that inhabit the diverse landscapes of the park.
Many routes in the region provide stunning vistas. The varied topography, including slopes, hills, and forests, frequently opens up to offer breathtaking views of the Pyrenees mountains. Routes with higher elevation gains, such as the Old Rimont Station – The tunnels of Véloroute 81 loop from Castelnau-Durban, often reward riders with expansive panoramas.


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