4.9
(11)
87
riders
6
rides
Gravel biking around Chambon offers a diverse landscape characterized by rolling hills, historical structures, and converted rail lines. The region features a mix of forested paths, open terrain, and routes that follow river valleys. Gravel bike trails in Chambon often incorporate sections of greenways and old railway tunnels, providing varied surfaces for riding. The terrain includes moderate climbs and descents, suitable for gravel cyclists seeking both scenic beauty and physical engagement.
Last updated: July 2, 2026
23
riders
130km
10:03
2,070m
2,070m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
11
riders
63.3km
04:42
980m
980m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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5.0
(6)
30
riders
47.4km
02:33
360m
360m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
49.5km
04:20
1,140m
1,140m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
130km
10:33
2,510m
2,510m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Nice 2.5 km climb from Le Martinet. At the top, the pass is the confluence of several forest tracks that allow you to explore the surrounding mountains, one of which, the Chemin de Trélis, allows you to reach Rochessadoule.
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Despite its current state, which is essentially in ruins, the castle (or more accurately, Castrum) of Allègre remains impressive and bears witness to nearly 10 centuries of history. It features towers and stately homes, a double rampart, a chapel, and a village. Located at an altitude of 275 meters, overlooking the middle valley of the Cèze, the entire site covers one and a half hectares and offers a sublime panorama of Mont Bouquet and the entire Cévennes (orientation table). Very close to the D37, the tour is best done on foot after leaving your bike in the parking lot.
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Ideal for gravel and touring bikes. Very safe, far from the sometimes heavy traffic during peak season. On my mountain bike, I found this cycle highway rather monotonous and boring. It's an ideal connecting road to the trails.
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not as easy as it seems 🦵
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The Via Ardeche railway cycle path is a nice idea in itself, but unfortunately, the perfect surface (asphalt) is only present in the tunnel sections. The rest is rough concrete, gravel, and even worse.
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The Via Ardeche railway cycle path is a nice idea in itself, but unfortunately, the perfect surface (asphalt) is only present in the tunnel sections. The rest is rough concrete, gravel, and even worse. It's pleasantly cool in the tunnel.
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The Via Ardeche railway cycle path is a nice idea in itself, but unfortunately, the perfect surface (asphalt) is only present in the tunnel sections. The rest is rough concrete, gravel, and even worse.
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1
The Chambon region offers a diverse landscape for gravel biking, characterized by rolling hills, historical structures, and converted rail lines. You'll encounter a mix of forested paths, open terrain, and routes that follow river valleys. Many trails incorporate sections of greenways and old railway tunnels, providing varied surfaces. The terrain generally includes moderate climbs and descents.
While many routes in Chambon are considered challenging, there are options suitable for those seeking a more moderate experience. For instance, the Gadilhe tunnel – Via Ardèche loop from Gagnières is a moderate 46.9 km path that utilizes the Via Ardèche, offering a mix of open sections and passages through tunnels. Another moderate option is the Little river in the pine forest – Greenway from Vogüé to Gagnères loop from Brahic, which is 28.4 km long.
For experienced gravel bikers looking for a challenge, Chambon offers several demanding routes. The Portes Castle – Trélis Pass loop from Portes is a difficult 63.3 km trail with significant elevation gain. Another challenging option is the Portes Castle – Portes Castle loop from Portes, a 49.5 km trail leading through varied terrain around the historic castle. The longest and most challenging route is the Gadilhe tunnel – Viaduc du Doulovy loop from Grand-Combe-la-Pise, spanning 123 km with over 2200 meters of elevation gain.
Chambon's gravel routes often pass by significant points of interest. You can explore the historic Portes Castle, ride through the impressive Gadilhe tunnel, or cross the Viaduc du Doulovy. Natural highlights include the Moulin de Roure Stone Bridge and River and various viewpoints like Le Montadou, offering views of the Cévennes Mountains.
Yes, many of the gravel bike routes in Chambon are designed as loops, allowing you to start and finish at the same point. Examples include the Portes Castle – Trélis Pass loop from Portes, the Gadilhe tunnel – Via Ardèche loop from Gagnières, and the Portes Castle – Portes Castle loop from Portes.
The gravel biking routes around Chambon are highly rated by the komoot community, with an average score of 5.0 stars from over 6 reviews. Many visitors praise the diverse terrain, the historical landmarks along the way, and the unique experience of riding through old railway tunnels and greenways.
The region's climate generally makes spring and autumn ideal for gravel biking, offering pleasant temperatures and vibrant scenery. Summer can also be enjoyable, especially on routes with shaded forest sections, but it's advisable to start early to avoid the midday heat. Winter riding is possible, but conditions can be variable, with potential for colder temperatures and occasional precipitation.
Yes, the Gadilhe tunnel – Via Ardèche loop from Gagnières specifically utilizes sections of the Via Ardèche near Saint-Paul-le-Jeune. This route offers a mix of open sections and passages through tunnels, providing a varied and enjoyable experience.
Given the varied terrain and potential for longer rides, it's recommended to bring plenty of water, snacks, a repair kit (including spare tubes and a pump), and appropriate clothing layers. Helmets are essential. For routes with tunnels, a good bike light is highly advisable. Always check the weather forecast before heading out.
The duration of tours varies significantly based on their length and difficulty. For example, the moderate Little river in the pine forest – Greenway from Vogüé to Gagnères loop from Brahic can be completed in about 2 hours 15 minutes, while the challenging Portes Castle – Trélis Pass loop from Portes typically takes around 4 hours 42 minutes. The longest route, Gadilhe tunnel – Viaduc du Doulovy loop from Grand-Combe-la-Pise, can take over 11 hours.
Many routes in Chambon offer scenic beauty, combining natural landscapes with historical elements. The trails that follow river valleys and incorporate greenways are particularly picturesque. Routes passing by Portes Castle or offering views from points like Le Montadou provide stunning vistas of the surrounding Cévennes Mountains and the diverse regional landscape.


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