Mountain passes around Lumbin, situated in the Chartreuse massif in France, offer diverse terrain for outdoor activities. This region is characterized by its blend of accessible and challenging routes, featuring both gentle green mountains and rocky peaks. The area provides opportunities for hiking, cycling, and mountain biking, with many passes offering extensive panoramic views. The Chartreuse massif is known for its natural beauty and varied landscapes.
Last updated: July 10, 2026
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Small pass in the Chartreuse, beautiful views and relatively quiet road.
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The cross of the Aulp du seuil is located at 1825m above the cirque and marks the entrance to the high plateaus.
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From Saint Laurent du Pont, a demanding 14km climb, with many sections at over 10%. It is divided into three parts: 9km of irregular ascent (6 to 11.5% /100m) to the junction for the Chartreuse Monastery. Then 2km of flat terrain to the foot of St Pierre de Chartreuse and finally a very steep climb (several sections at +12% /100m) to the Col de Cucheron. A pass not to be underestimated! 25 degrees at St Laurent = 15 degrees at the top of the pass and its very shaded slopes. Dress accordingly.
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Exceptional site at the foot of the Dent de Crolle with access via a wild forest road
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Beautiful rock formation. Here is one of the steepest sections
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Great hike! Make sure you have good shoes with crampons because some slopes are a bit slippery. Magnificent view at the top.
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Beautiful pass between St-Pierre-de-Chartreuse and St-Pierre-d'Entremont
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The Chartreuse massif, where Lumbin is located, offers several highly-rated mountain passes. Among the most popular are Col du Cucheron, known for its magnificent views of the North Chartreuse and a relatively short climb. Another favorite is Col du Coq, which provides a stunning perspective of the Dent de Crolles, despite some challenging road conditions. The Bellefont Pass is also highly regarded for its breathtaking views of Mont Blanc and the highest peaks of the Chartreuse massif.
The mountain passes around Lumbin offer diverse and spectacular panoramic views. From Bellefont Pass, you can see Mont Blanc and the highest peaks of the Chartreuse. The Col du Cucheron provides magnificent vistas of the North Chartreuse. From the summit of Dent de Crolles, accessible via the Pas de l'Oeil, you'll get an amazing view of the south of Chartreuse, the Belledonne massif, and the Grésivaudan valley. Chamechaude, the highest point of the massif, offers an exceptional 360-degree view that can extend to the highest Alpine peaks on a clear day.
Yes, the Chartreuse massif provides several challenging options. The Col du Coq is considered a challenging mountain pass, especially for cyclists due to its steep sections and damaged road conditions. The climb to the summit of Dent de Crolles via the Pas de l'Oeil is also steep and technical, involving a chain to ascend a small, potentially slippery path. These routes offer a rewarding experience for those seeking a more demanding adventure.
The region around Lumbin is ideal for various outdoor activities. You can explore numerous routes for gravel biking, road cycling, and mountain biking. Hiking is also very popular, with trails leading to panoramic viewpoints and challenging summits like Dent de Crolles and Chamechaude. The diverse landscapes cater to different skill levels and preferences.
The Chartreuse massif is rich in natural beauty and wildlife. You'll find diverse landscapes ranging from gentle green mountains to rocky peaks. Areas like Pravouta are sensitive natural spaces, important habitats for species such as the black grouse. Visitors to the Dent de Crolles area have even reported waking up with chamois, indicating the presence of these mountain goats. The trails themselves often feature excellent flowing single-track in beautiful surroundings.
The Chartreuse massif is generally popular for outdoor activities from spring through autumn. During these seasons, the weather is more favorable for hiking, cycling, and mountain biking, allowing for clear views and safer passage on trails. Winter offers opportunities for snow-based activities, but some passes and routes may be inaccessible or require specialized equipment and experience due to snow and ice.
Yes, many passes in the region cater to intermediate levels. The Col du Cucheron, for instance, offers a relatively short climb from Saint-Pierre-de-Chartreuse, making it accessible. The Col du Barrioz, located in the Belledonne region, also provides a satisfying climb with high-quality routes suitable for intermediate road and mountain bike enthusiasts.
Visitors frequently praise the magnificent panoramic views, especially from passes like Col du Cucheron and Col du Coq. The blend of accessible and challenging routes for cycling and hiking is also a major draw. Many appreciate the natural beauty, the sense of immersion in nature, and the opportunity to spot wildlife. The unique hiking experience to summits like Dent de Crolles is also highly valued by the community.
While specific facilities vary by pass, some locations do offer amenities. For example, at the Bellefont Pass, you can find water on the south side at a cabin at the foot of the source. It's always advisable to carry sufficient water and supplies, especially on longer or more remote routes, as facilities may not be consistently available.
When hiking with dogs, especially in areas with livestock, caution is advised. For instance, near the Pas de l'Oeil, there's a warning about poorly trained dogs (referring to sheepdogs), so it's important to stay calm and allow sheep to reorganize. Always keep your dog under control, especially in areas with grazing animals or sensitive wildlife habitats, and check local regulations regarding dogs on trails.
The Pas de l'Oeil provides access to the top of the Dent de Crolles, offering a truly unique hiking experience. This route involves a technical section with a chain to ascend a steep path, leading to an impressive summit with expansive views. It's a memorable adventure for those seeking something beyond a typical walk.
While the Col du Coq is noted as the highest pass in the Chartreuse, the highest point of the Chartreuse massif itself is Chamechaude, culminating at 2,082 meters. The Dent de Crolles is the second-highest peak at 2,062 meters, accessible via routes like the Pas de l'Oeil.


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