4.7
(4)
31
riders
5
rides
Gravel biking around Saint-Thomas-En-Royans offers routes through the Vercors Massif, characterized by deep gorges, limestone cliffs, and mountain passes. The region features diverse terrain, including forest tracks, gravel paths, and winding roads. This landscape provides varied surfaces suitable for gravel biking, from smoothly paved sections to unpaved tracks and undergrowth trails. The area's proximity to the Vercors Regional Natural Park ensures access to a network of trails with significant elevation changes.
Last updated: October 6, 2026
4.0
(1)
5
riders
23.7km
01:50
450m
450m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
14
riders
46.7km
03:36
1,430m
1,430m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

2
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
4
riders
49.0km
04:08
1,460m
1,460m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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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.
12
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.
9
0
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.
9
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
Scenic road immersed in nature.
6
0
scenic road surrounded by nature.
6
0
Road immersed in nature.
9
0
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
There are over 10 gravel bike routes documented on komoot for the Saint-Thomas-En-Royans area. These trails primarily cater to experienced riders seeking challenging terrain through the Vercors Massif.
The terrain around Saint-Thomas-En-Royans is characterized by the dramatic landscapes of the Vercors Massif, featuring deep gorges, limestone cliffs, and mountain passes. You'll encounter varied surfaces, from forest tracks to winding roads, often with significant elevation changes.
Yes, many of the gravel bike routes in the region are designed as loops. For example, the Cirque of Combe Laval – Machine Pass loop from Saint-André-en-Royans offers a challenging circular ride through stunning scenery.
The gravel biking routes around Saint-Thomas-En-Royans are predominantly rated as difficult, featuring significant elevation gains and technical sections. There are currently no easy or moderate routes listed, making the area best suited for advanced gravel bikers.
For experienced riders, the region offers several demanding routes. Consider the Bourne Gorge – Bourne Gorge loop from Choranche, which covers 42.6 km with over 1300 meters of elevation gain, providing a substantial challenge.
The best time for gravel biking in Saint-Thomas-En-Royans is typically from late spring to early autumn (May to October) when the weather is generally mild and the mountain passes are clear of snow. Summer offers warmer temperatures, but spring and autumn provide pleasant conditions and vibrant scenery.
Gravel biking in winter can be challenging due to potential snow and ice, especially at higher elevations and mountain passes within the Vercors Massif. Some lower-lying routes might be accessible, but it's crucial to check local weather and road conditions before heading out.
While the routes often traverse natural and sometimes remote areas, you'll find villages and small towns like Pont-en-Royans or Choranche near some trailheads or along certain segments where you can find cafes, bakeries, or small shops for refreshments.
The routes offer breathtaking views of the Vercors Massif. You can expect to see dramatic features like the Combe Laval Cirque and traverse iconic mountain passes such as the Machine Pass. The region is also known for its impressive caves, including the Choranche Cave.
The gravel biking routes in Saint-Thomas-En-Royans are highly rated by the komoot community, with an average score of 4.8 stars from 8 reviews. Riders often praise the challenging nature of the trails, the stunning panoramic views, and the unique experience of riding through the Vercors gorges and passes.
Yes, parking is generally available in the villages and towns that serve as starting points for these routes, such as Saint-Romans, Pont-en-Royans, or near popular attractions like Col de la Machine. Always check local signage for specific parking regulations.


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