4.8
(5)
35
riders
4
rides
Gravel biking around Saint-Just-De-Claix features routes through mountainous terrain, characterized by deep gorges such as the Combe Laval and Bourne Gorge, and significant mountain passes like the Machine Pass. The region offers demanding climbs and descents, with trails often traversing varied surfaces including paved sections and unpaved gravel paths. These routes provide extensive views across the landscape and require a good level of fitness.
Last updated: November 3, 2026
5.0
(2)
14
riders
46.7km
03:36
1,430m
1,430m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
5.0
(1)
7
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces.

4.0
(1)
2
riders
44.1km
03:20
810m
810m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
5.0
(1)
4
riders
49.0km
04:08
1,460m
1,460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
1
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Prepare to experience one of the most spectacular and exciting road routes in Europe! The Combe Laval road, nestled in the Vercors massif, is a true engineering masterpiece of the 19th century. Also known as the "road of dizziness," it winds for about 4 kilometers literally carved into the limestone rock, offering passages through suggestive tunnels and natural balconies with breathtaking drops that will take your breath away.
14
0
Get ready to experience one of the most spectacular and exciting road routes in Europe! The Combe Laval road, nestled in the Vercors massif, is a true masterpiece of 19th-century engineering. Also known as "the road of dizziness," it winds for about 4 kilometers literally carved into the limestone rock, offering passages through suggestive tunnels and natural balconies with breathtaking overhangs that will leave you breathless.
11
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The Col de la Machine (1,011 m) is one of the most spectacular and famous access gates to the entire Vercors massif. World-renowned for being the highest point of the legendary Combe Laval, this pass offers a steady climb (around 6% average gradient from Saint-Jean-en-Royans) that winds through a dense and majestic forest.
11
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La Combe Laval is one of the most spectacular scenic roads in the Vercors massif. The D76 was carved into the rock face between the 19th and 20th centuries and passes through a succession of tunnels, ledges, and sections suspended over the valley.
12
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Road immersed in nature.
9
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Spectacular road carved into the rock in the heart of the Vercors. Vertical walls, numerous tunnels, and the Bourne stream accompany the route in a wild and evocative setting. One of the most scenic roads in the Vercors, not to be missed by bicycle.
10
0
View of the Combe Laval cirque on the way out of Saint-Laurent-en-Royans.
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Suspension bridge for pedestrians at Le Barrage across the river Bourne
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0
Gravel biking around Saint-Just-De-Claix is characterized by challenging routes through mountainous terrain. All 9 available tours are rated as difficult, featuring significant elevation gains, demanding climbs, and descents. These trails are primarily suited for advanced gravel cyclists with a good level of fitness.
The gravel biking routes in Saint-Just-De-Claix are generally demanding and rated as difficult, with substantial elevation changes. There are no routes specifically classified as easy or family-friendly within this guide. The terrain is best suited for experienced riders seeking a challenge.
The region offers extensive views across dramatic landscapes, including deep gorges like the Combe Laval and Bourne Gorge, and significant mountain passes such as the Machine Pass. You'll experience varied surfaces, from paved sections to unpaved gravel paths, all set against a backdrop of challenging mountainous terrain.
Several impressive natural and historical sites are close to the gravel trails. You can explore the stunning Cirque of Combe Laval and the Combe Laval Cirque, or visit the charming village of Pont-en-Royans. For those interested in waterfalls, the White Waterfall is also nearby.
Yes, many of the routes in Saint-Just-De-Claix are designed as loops. For instance, the Cirque of Combe Laval – Machine Pass loop from Saint-Romans is a popular circular option, as is the Bourne Gorge – Bourne Gorge loop from Choranche.
Given the mountainous terrain and potential for varied conditions, late spring through early autumn (May to October) generally offers the most favorable weather for gravel biking in Saint-Just-De-Claix. During these months, you're more likely to encounter stable conditions and enjoy the extensive views. Winter can bring snow and ice, making many routes impassable or significantly more challenging.
The gravel biking experience in Saint-Just-De-Claix is highly rated by the komoot community, with an average score of 5.0 stars from 7 reviews. Over 70 gravel bikers have explored the varied terrain, often praising the challenging nature of the routes and the dramatic scenery of the gorges and mountain passes.
Yes, the region is home to several beautiful waterfalls. The White Waterfall is a notable highlight. You can also find the Pont-en-Royans Waterfalls and the Waterfall at Chaussère in the vicinity, offering picturesque spots to visit.
The duration of the routes varies depending on their length and elevation. For example, the Machine Pass – Combe Laval loop from Pont-en-Royans, at 48.3 km, typically takes around 4 hours 14 minutes. Longer routes, such as the 69.5 km Cirque of Combe Laval – Machine Pass loop from Saint-André-en-Royans, can take approximately 6 hours 2 minutes.
The trails around Saint-Just-De-Claix feature varied surfaces. You will encounter both paved sections and unpaved gravel paths, often traversing through mountainous terrain. This mix contributes to the challenging and diverse nature of the gravel biking experience in the region.
While the guide focuses on gravel biking, the region's natural landscape with gorges and rivers suggests potential for wild swimming. However, specific designated or safe wild swimming spots are not detailed in the route information. It's advisable to research local regulations and safety conditions for any potential swimming locations.
All routes listed in this guide on komoot, such as the Machine Pass – Cirque of Combe Laval loop from Saint-Jean-en-Royans, are available with downloadable GPX tracks. You can access these directly from each individual tour page on komoot to navigate your ride.


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