4.8
(168)
3,617
riders
34
rides
Road cycling routes around Réserve biologique intégrale du Vercors traverse a landscape characterized by expansive limestone plateaus, deep gorges, and dense forests. The region features significant altitude variations, with roads winding through diverse ecosystems from lower elevation forests to alpine meadows. This terrain provides a challenging yet scenic environment for road cyclists, with elevations ranging from 676 to 1888 meters. The area is part of a larger protected natural park, offering extensive natural settings for cycling.
Last updated: October 18, 2026
4.8
(6)
64
riders
55.6km
03:30
1,300m
1,300m
Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.
37
riders
95.4km
05:19
2,040m
2,040m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

4.8
(25)
729
riders
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.7
(14)
301
riders
51.6km
02:55
1,200m
1,200m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
4.9
(19)
255
riders
45.8km
02:17
730m
730m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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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.
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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.
9
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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.
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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.
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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 galleries, ledges, and sections suspended over the valley.
7
0
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.
11
0
The Col du Rousset (or Col de Rousset) is one of the most famous and evocative mountain passes in the Vercors Massif, located in the Drôme department, France.
8
0
Road immersed in nature.
9
0
The Réserve biologique intégrale du Vercors offers a diverse and challenging terrain for road cyclists. You'll encounter expansive limestone plateaus, dramatic deep gorges, and dense forests. The routes feature significant altitude variations, with elevations ranging from 676 to 1888 meters, providing both challenging climbs and scenic descents through varied ecosystems.
While many routes in the Vercors are challenging, there are options for less experienced cyclists. The region offers 3 easy and 15 moderate routes. For a moderate option, consider the Col de Rousset – Col de Rousset loop from Vassieux-en-Vercors, which offers a manageable distance and elevation gain.
The Vercors is rich in natural beauty. Cyclists can experience the dramatic Gorges de la Bourne, the challenging Machine Pass, and the stunning Cirque of Combe Laval. Routes like the Wonderful Col de Rousset – Panoramic View of the Diois loop offer panoramic views across the Diois region, showcasing the area's striking landscapes.
The best time for road cycling in the Vercors is typically from late spring to early autumn (May to October). During these months, the weather is generally more stable, and the mountain passes are clear of snow, allowing full access to the region's extensive network of routes. Always check local weather forecasts before heading out, especially for higher elevations.
Yes, the Vercors offers several longer routes for endurance cyclists. For example, the Route des Petits Goulets – Pont-en-Royans loop from Saint-Agnan-en-Vercors covers over 86 kilometers with significant elevation gain, providing a substantial challenge and a full day's ride.
The road cycling routes in the Réserve biologique intégrale du Vercors are highly regarded by the komoot community, with an average rating of 4.6 stars from over 150 reviews. Cyclists frequently praise the region's breathtaking scenery, the challenging yet rewarding climbs, and the well-maintained roads that wind through its unique natural landscapes.
Many of the road cycling routes in the Vercors are designed as loops, allowing you to start and finish at the same point. Examples include the Bourne Gorge – Bourne Gorge loop and the Machine Pass – Cirque of Combe Laval loop, both offering comprehensive tours of their respective areas.
Yes, many road cycling routes in the Vercors start from villages like Saint-Agnan-en-Vercors or Vassieux-en-Vercors, which typically offer public parking facilities. It's advisable to check specific starting points for available parking options before your ride.
While the Réserve biologique intégrale du Vercors is largely natural, many routes pass through or near charming villages where you can find cafes, bakeries, and restaurants. These spots offer opportunities to refuel and experience local hospitality. Planning your route with potential stops in mind is recommended.
Road cycling in the Réserve biologique intégrale du Vercors is generally considered challenging due to the significant elevation changes and mountainous terrain. Out of 35 routes, 17 are rated as difficult, and 15 as moderate. Cyclists should be prepared for sustained climbs and winding roads, often with steep gradients.
The Vercors is a haven for biodiversity. While cycling, you might spot various protected species such as deer, golden eagles, or even the rare Tengmalm's owl. The broader Vercors Regional Natural Park is also home to marmots, chamois, and ibex, particularly in the higher plateaus, adding to the region's wild appeal.
The Vercors massif boasts an extensive network of 447 km of road cycling routes. A significant portion, 383 km, is immersed in natural settings, offering cyclists ample opportunities to explore the region's wild beauty on two wheels.


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