Mountain passes near Saint-Thomas-En-Royans are situated in the Royans region, serving as a gateway to the Vercors massif. This area features dramatic landscapes and routes that offer recreational opportunities. The region is characterized by its mountainous terrain and natural features.
Last updated: June 26, 2026
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Beautiful place and still preserved from the crowds
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Here is the route for the ascent of the Col de la Machine starting from Saint-Jean-en-Royans, which passes through the incredible Combe Laval!
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After a long section of "classic" pass, we suddenly find ourselves on the side of a cliff with a majestic view 😍. The valley is not very long but magnificent. Many nooks and crannies to stop and take a photo.
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A fairly demanding pass at first, but it eventually eases off as the scenery becomes incredible! 6 km at 8%, then 6%, 4%, 5% (not sure, I was just looking at the scenery) and the last two km at 4%.
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The landscape is an absolute eye-catcher, a great road with countless views.
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Magnificent landscape, great road in the rocks. More information: https://www.quaeldich.de/touren/touren-im-parc-naturel-regional-du-vercors/route-combe-laval-variante-1/
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Small pass on the D199, unfortunately without a pass sign. There is a small water source not far away.
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Fantastic landscape, beautiful road. Combe Laval, a must in the Vercors.
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The region boasts several highly scenic passes. The Machine Pass is renowned for its dramatic 'balcony road' carved into the mountainside, offering breathtaking panoramic views of the Vercors massif and the Combe Laval. Another spectacular option is the Combe Laval Cirque, a gorge with a road running along impressive limestone escarpments, featuring a continuous alternation between tunnels and open-air sections.
Yes, several passes offer challenging ascents for cyclists. The Machine Pass, for instance, has approaches from Saint-Jean-en-Royans (12.3 km, 761m elevation gain, average 6.19% gradient) or Saint Laurent en Royans (17.5 km, 699m elevation difference, average 3.99% gradient). The Col de Tourniol also features a challenging 12.1 km ascent from Barbières with an average gradient of 6% and 15 hairpin turns. For more cycling options, explore the Road Cycling Routes around Saint-Thomas-En-Royans.
Absolutely. The Col de Rousset, located at an elevation of 1,254 m, is home to an Alpine ski resort. It offers 26 varied downhill ski runs, a snowpark, a boardercross course, and toboggan runs. You can also find opportunities for biathlon, Nordic ski touring, and snowshoeing there.
The region is rich in dramatic natural landscapes. The Machine Pass and Combe Laval Cirque are famous for their 'balcony roads' carved into steep karst mountainsides, offering views of 700-meter peaks and sheer drops. You'll also encounter hand-carved tunnels and impressive limestone escarpments.
Yes, the Col de la Machine road was constructed between 1861 and 1898, originally for transporting timber, and includes historical hand-carved tunnels like the 'tunnel des Moines'. The Col de Rousset also features a tunnel drilled between 1861 and 1866, which was vital for trade between Die and the Vercors region.
The Col de Tourniol is often described as a peaceful road, less frequented than some other passes in the Vercors. It's ideal for those seeking a quieter experience while still enjoying beautiful viewpoints and challenging sections.
The Col de Rousset is particularly family-friendly, especially due to its year-round activities. In winter, it offers toboggan runs and varied ski slopes. During summer, families can enjoy off-road scooters, summer sledding, mountain biking, and hiking. A panoramic chairlift also provides spectacular views for all ages.
Beyond scenic drives and road cycling, the area offers a variety of outdoor activities. You can find numerous routes for mountain biking and gravel biking. Explore options like the MTB Trails around Saint-Thomas-En-Royans or the Gravel biking around Saint-Thomas-En-Royans for detailed routes.
The best time to visit depends on your preferred activities. For scenic drives, cycling, and hiking, spring through autumn (May to October) offers pleasant weather. For winter sports like skiing and snowshoeing, the winter months (December to March) are ideal, particularly at the Col de Rousset.
Visitors consistently praise the unparalleled panoramic views, especially from the 'balcony roads' like the Machine Pass and Ascent to the Col de la Machine. The unique experience of traversing hand-carved tunnels and the challenging yet rewarding cycling routes are also highly appreciated. Many highlight the dramatic landscapes and the sense of immersion in nature.
While the Machine Pass and Col de Rousset are well-known, the Col de la Portette offers a beautiful route through the Vercors massif, culminating at 1,173 meters. It's a quieter option for those looking to explore off the main tourist paths.


See even more epic mountain passes by checking out these guides around Saint-Thomas-En-Royans: