Best mountain passes in Vercors are found within a natural fortress of limestone cliffs and expansive plateaus in southeastern France. This region is characterized by its dramatic geological formations, including deep gorges and high-altitude plateaus. The Vercors Massif offers a diverse landscape for exploration, ranging from forested areas to open alpine pastures. Its terrain provides varied routes for outdoor activities.
Last updated: May 14, 2026
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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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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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It is possible to do the Crête des Crocs tour by following the path at the bottom of the cliffs. You will have to pay attention to the cairn which indicates when you must leave it to reach the ridge and switch to the other side. Be careful, the path to go back down includes a technical passage that can be avoided by passing the rocky bar while staying on the ridge.
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The Col de la Machine is located at the end of the remote karst of Combe Laval. The panorama is spectacular and the site gives you an overall impression of the natural environment which constitutes the Vercors massif.
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Magnificent site with a superb view
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The descent (or ascent) to Saint-Paul de Varces is very steep (about 25% on average) with a long passage through woods that can be particularly slippery in wet weather.
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This passage culminates at 1,736 meters above sea level. It is located on a ridge from which you can switch either to the side of the Gresse valley or to the Lans-en-Vercors plateau. It offers a magnificent view of Belledonne, Les Rousses and Les Écrins in the background.
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The first tough km at 8% but the view is worth it!
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The Vercors Massif offers several breathtaking passes. The Machine Pass is renowned for its dramatic D76 road, often called a "French balcony road," carved into the steep mountainside, offering spectacular views over the Combe Laval. Another highlight is Col de Rousset, which provides varied panoramas, contrasting alpine conditions with an almost Mediterranean environment on the other side.
The Vercors is a cyclist's paradise. The Col de la Machine is a prime destination for road cycling, known for its magnificent D76 road. For a demanding climb, the routes leading to Col du Mont Noir, especially through the Gorges du Nan, are highly rewarding. The Col de Rousset also offers a great road bike tour with a comfortable slope. You can find more cycling routes in the region by checking out the Cycling in Vercors guide.
Yes, Col de Rousset is a year-round destination with family-friendly options. In summer, visitors can enjoy activities like off-road scooters, summer sledding, mountain biking, and hiking. In winter, it transforms into an alpine ski resort with trails for all levels, and a Nordic ski area offering cross-country skiing and dog sledding. Col de Romeyère also has a small ski resort in winter with alpine and Nordic skiing, snowshoeing, and a toboggan area.
The Vercors mountain passes offer different experiences depending on the season. Summer (June to September) is ideal for hiking, cycling, and enjoying outdoor activities like those at Col de Rousset. Winter (December to March) is perfect for snow sports, with passes like Col de Rousset and Col de Romeyère offering skiing and snowshoeing. The dramatic scenery of passes like Col de la Machine can be appreciated in spring and autumn as well, though some roads might have seasonal closures or require caution due to weather.
For unparalleled vistas, the Col de la Machine is consistently described as spectacular, offering breathtaking views over the Combe Laval. The Col de Rousset also provides expansive views of the Vercors peaks and the Diois valley, especially from the upper ski lifts. Additionally, Arc Pass offers a magnificent view of Belledonne, Les Rousses, and Les Écrins in the background.
Yes, the Vercors Massif offers numerous challenging hiking opportunities. The true pass of Col de Rousset, reaching 1,367 meters, is accessible on foot and provides even more expansive views. The region is also the starting point for the Grande Traversée du Vercors (GTV), a renowned route for cross-country skiing in winter and mountain biking in summer. For more challenging options, explore the Mountain Hikes in Vercors guide, which includes routes like the Pic Saint-Michel loop.
The Vercors is characterized by dramatic geological formations. The Col de la Machine is famous for its D76 road carved into the steep mountainside at the end of the Combe Laval karst reculée, featuring a series of tunnels. Col de Rousset is notable for its 769-meter-long tunnel and the striking contrast between alpine and almost Mediterranean environments. Col de Romeyère provides access to the vast Forêt domaniale des Coulmes and impressive viewpoints of the Vercors plateaus and the deep Gorges de la Bourne.
Col du Mont Noir, located at 1,421 meters (or 1422 m), is considered the highest asphalted road pass in the northern part of the Vercors Massif. It is nestled within the grandiose beech forest of the Coulmes and offers demanding climbs for cyclists.
Absolutely. While some passes offer challenging routes, there are also easier options. The area around Col de Romeyère, for instance, offers peaceful hiking trails. For a wider selection of less strenuous walks, you can consult the Easy Hikes in Vercors guide, which features routes like the Revoulat Viewpoint loop.
The construction of roads through Vercors passes represents significant engineering feats. The D76 road at Col de la Machine, built between 1861 and 1898, is an engineering marvel carved directly into the steep mountainside. Similarly, the Col de Rousset features a 769-meter-long tunnel drilled in 1979, replacing an older one from 1866, to facilitate passage and connect regions.
Col de Romeyère is particularly appreciated for its tranquil atmosphere and stunning natural beauty. It serves as a gateway to the wild landscapes of the Vercors Regional Natural Park and provides a sense of being lost in nature, away from heavy traffic, especially on its diverse cycling and hiking routes.


See even more epic mountain passes by checking out these guides in Vercors: