4.3
(8)
81
riders
6
rides
Gravel biking around Portes offers a diverse landscape characterized by significant elevation changes, historical structures, and varied terrain. The region features routes that traverse through areas with castles, tunnels, and viaducts, indicating a mix of natural and engineered landscapes. Riders can expect to encounter challenging climbs and descents across a hilly and mountainous environment. Trails often lead through scenic passes and along former railway lines, providing a robust setting for gravel biking.
Last updated: July 5, 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.
1
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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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The Portes region offers a diverse range of gravel biking trails, primarily featuring routes from moderate to difficult. Riders should be prepared for significant elevation changes, challenging climbs, and descents, typical of a hilly environment.
While many routes in Portes are challenging, the area does offer some moderate options. For instance, the Gadilhe tunnel – Via Ardèche loop from Gagnières is a moderate 29.2-mile (46.9 km) path that features the Gadilhe tunnel and follows sections of the Via Ardèche, making it a good choice for those looking for a less strenuous ride compared to the more difficult routes.
Gravel bike routes in Portes vary significantly in length and elevation. You can find shorter, moderate rides like the Gadilhe tunnel – Via Ardèche loop from Gagnières at 29.2 miles (46.9 km) with 355m of ascent. For more challenging adventures, routes such as the Gadilhe tunnel – Viaduc du Doulovy loop from Grand-Combe-la-Pise extend to 76.5 miles (123 km) with over 2200m of climbing, offering substantial physical challenges.
Yes, many of the gravel bike routes in Portes are designed as loops, allowing you to start and finish at the same point. Examples include the Portes Castle – Trélis Pass loop from Portes, which is a 39.3-mile (63.3 km) trail, and the Portes Castle – Portes Castle loop from Portes, covering 30.7 miles (49.4 km).
The Portes region is rich in history and features several notable landmarks along its gravel routes. You can explore the impressive Portes Castle, which is central to several routes. Other historical structures include the Gadilhe tunnel and the Viaduc du Doulovy, both of which are integrated into various trails, offering a blend of natural beauty and engineered heritage.
Yes, beyond historical sites, the Portes area also offers natural monuments. You might encounter the Moulin de Roure Stone Bridge and River, or ancient sites like the Dolmen de Boustiga and the Necropolis of Peyraube. For those seeking panoramic views, the Pic de la Tourette offers a rewarding climb.
The gravel biking trails in Portes are highly rated by the komoot community, with an average score of 4.3 stars from over 7 reviews. Riders often praise the diverse landscape, which combines historical structures like castles and viaducts with challenging passes and varied terrain. The mix of natural and engineered landscapes provides a robust and engaging setting for gravel biking.
There are currently 6 gravel bike trails documented in the Portes region on komoot, offering a range of experiences from moderate to difficult. These routes have been explored by over 80 gravel bikers.
Given the region's significant elevation changes and varied terrain, spring and autumn generally offer the most pleasant conditions for gravel biking in Portes, with milder temperatures and vibrant scenery. Summer can be hot, especially on exposed sections, while winter may bring colder temperatures and potentially challenging conditions at higher elevations.
Yes, the Portes region is known for its scenic passes and elevated terrain, which naturally offer numerous viewpoints. Routes that traverse mountain passes, such as the Portes Castle – Trélis Pass loop from Portes, are likely to provide riders with expansive views of the surrounding landscape.
Many gravel routes in Portes start from towns or villages like Saint-Julien-de-Cassagnas, Gagnières, or Portes itself. These locations typically offer public parking options. It's advisable to check local parking availability for your chosen starting point before your ride.
Public transport options in rural areas like Portes can be limited. While some villages may have bus services, direct access to trailheads might require a car. For specific routes, it's recommended to research local bus schedules or train connections to the nearest towns and plan accordingly.


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