5.0
(2)
17
riders
3
rides
Gravel biking around Saint-Nazaire-En-Royans is situated at the entrance to the Vercors Regional Natural Park, characterized by a transition from the Drôme plains to the pre-Alpine hills. This area features river valleys, such as the Isère and Bourne, alongside wooded terrain and significant elevation changes leading into the Vercors massif. The landscape offers diverse gravel biking opportunities, from riverside paths to challenging mountain passes.
Last updated: July 11, 2026
5.0
(2)
12
riders
46.9km
03:37
1,430m
1,430m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
90.8km
06:34
2,170m
2,170m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Jaco'Pain, founded in 1989, is a community store offering a variety of organic baked goods, a café-restaurant, and local products. Some of the baked goods are gluten-free. Very friendly service. More information can be found on the website https://www.jacopain.fr/.
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Suspension bridge for pedestrians at Le Barrage across the river Bourne
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Great scenery! Little traffic, early September!
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A very beautiful route. Unfortunately, motorists think so too. Even campers squeeze through the narrow road—so be even more careful than usual!
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Very nice road, not always open due to landslides, lots of traffic on weekends
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A true must-see in Vercors
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Undoubtedly the most beautiful road in the Vercors, and certainly a delight for cyclists. The climb through Saint-Jean-en-Royans is quite challenging, with numerous sections at 8-9% gradients. It's possible to do it downhill by first climbing the Col du Pionnier.
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1
I confirm having done them on August 13, 2024 in both directions, much prettier in the direction of Vilars de l Ans Pont en Royan
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The region offers a diverse mix of terrain, transitioning from the plains of the Drôme to the pre-Alpine hills of the Vercors. You'll find river valleys along the Isère and Bourne, wooded sections, and significant elevation changes as you climb into the Vercors massif. Expect challenging ascents and descents, with routes like the Cirque of Combe Laval – Machine Pass loop from Saint-Romans navigating demanding passes and scenic roads.
The gravel bike routes around Saint-Nazaire-en-Royans are generally considered challenging, with all 8 listed routes rated as 'difficult'. They feature substantial climbs and significant elevation changes, making them more suitable for experienced riders. There are no routes specifically categorized as easy or moderate in the guide.
The area is rich in natural beauty. You can experience the dramatic landscapes of the Vercors Regional Natural Park, including deep gorges and towering cliffs. Routes often feature panoramic views, such as those found on the Machine Pass – Combe Laval loop from Pont-en-Royans. The Cirque de Combe Laval is also highlighted as an exceptionally beautiful road. You might also encounter the Aqueduct of Saint-Nazaire-en-Royans, offering views of the Vercors and Bourne Valley.
While not directly on the gravel routes themselves, the region around Saint-Nazaire-en-Royans is home to several beautiful waterfalls that could be visited as a detour. Notable ones include the White Waterfall, Pont-en-Royans Waterfalls, and the Waterfall at Chaussère.
Given the significant elevation changes and pre-Alpine hills, spring and autumn generally offer the most pleasant conditions for gravel biking, with milder temperatures and vibrant scenery. Summer can be warm, especially in the valleys, while winter may bring snow to higher elevations in the Vercors, making some routes inaccessible or more challenging.
Yes, all the featured gravel bike routes in this guide are circular. Examples include the Cirque of Combe Laval – Machine Pass loop from Saint-Romans, the Machine Pass – Combe Laval loop from Pont-en-Royans, and the Cirque of Combe Laval – Machine Pass loop from Saint-André-en-Royans. These loops allow you to start and finish in the same location.
The routes in Saint-Nazaire-en-Royans are highly rated by the komoot community, with an average score of 5.0 stars from over 5 reviews. More than 60 gravel bikers have used komoot to explore the varied terrain, often praising the challenging nature of the routes and the stunning panoramic views of the Vercors.
Yes, the region offers several interesting attractions. The 19th-century Aqueduct of Saint-Nazaire-en-Royans is a prominent landmark. You can also explore the Grotte de Thaïs, a prehistoric cave system, or visit the picturesque village of Pont-en-Royans, known for its unique hanging houses. The Château de Rochechinard also provides a historical landmark with potential rewarding views.
The gravel bike trails around Saint-Nazaire-en-Royans vary in length and duration. For example, the Machine Pass – Cirque of Combe Laval loop from Saint-Jean-en-Royans is about 38 km (23.6 miles) and takes around 3 hours 27 minutes, while the Cirque of Combe Laval – Machine Pass loop from Saint-Romans is longer at 72.9 km (45.3 miles) and typically takes over 6 hours to complete.
While Saint-Nazaire-en-Royans is accessible by road, specific public transport options directly to trailheads might be limited. It's advisable to check local bus schedules for connections from larger towns in the Drôme department. Many visitors choose to arrive by car, especially with bikes, to access the various starting points for the routes.
The routes often pass through or near small villages in the Royans area, such as Pont-en-Royans or Saint-Jean-en-Royans, where you can typically find cafes, bakeries, or small shops for refreshments. It's always a good idea to carry sufficient water and snacks, especially on longer, more remote sections of the Vercors.
When cycling within the Vercors Regional Natural Park, it's generally recommended to keep dogs on a leash to protect wildlife and ensure their safety, especially in areas with livestock or steep terrain. Specific regulations can vary, so it's always best to check the park's official guidelines for the most current information regarding pets.


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