Best mountain passes around Bardonecchia provide access to high-altitude terrain in the Cottian Alps. This region, situated on the Italian-French border, features a landscape characterized by challenging climbs, historical military roads, and panoramic views. The passes offer diverse routes for outdoor activities, often reaching elevations above 2,000 meters. Many routes are unpaved, reflecting their origins as military infrastructure.
Last updated: April 28, 2026
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Popular around Bardonecchia
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Hiking around Bardonecchia
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Gravel biking around Bardonecchia

Mountain Hikes around Bardonecchia
near the Thabor refuge
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The descent is difficult but the landscape is beautiful
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https://youtu.be/Kl8aY-ksp7c?si=lv9_5ko1gQxpJgSM A classic during the Alpine Crossing to the south, as it's well-ridden. The steep downhill section isn't that long and can be pushed without difficulty, so I had no problem with it.
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Very tough climb with gradients almost always in double figures.
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A rugged border pass linking Italy back to France, the Col de la Mulattiera is as remote as it is demanding. The climb is steep and loose, with the final meters carved into bare rock. At the top, the views stretch endlessly across the plateau of Col du Granon, the Cerces massif, and the Italian valleys behind you. Beside the pass stands the Caserma XVI, a weathered stone barracks, a quiet trace of the lives once lived in these high borderlands.
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Excuse me, Alessandra, how did you do it? Since it's not for beginners? PS: There are no beginners in MTB! I don't think you're a MTB guide? Or am I wrong?
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Mulattiera Pass and its beautiful landscapes
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the climb leading to the Mulattiera pass is practically finished
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For those seeking a challenge, the region offers several demanding passes. The Col du Sommeiller Gravel Climb, at nearly 3,000 meters, is one of Europe's highest points reachable by dirt road, featuring a 26-kilometer climb with significant elevation gain. The Mulattiera Pass is also known for its demanding, unpaved terrain with loose rocks, suitable for experienced mountain bikers. Additionally, Col du Granon (2,413 m) is renowned for its challenging cycling climb, especially from the south side with gradients up to 15%.
Many passes in the region are former military roads. The Strada dell'Assietta and Colle dell'Assietta (2472 m) is a 34-kilometer unpaved military road built in the late 1800s, dotted with ruins of ancient forts. The Mulattiera Pass features a huge barracks ruin from 1939. The Col de la Vallée Étroite was part of the Maginot Line between 1928 and 1940, marked by a cross.
Yes, the mountain passes around Bardonecchia are very popular with cyclists. The Col du Granon (2,413 m) is famous for its challenging paved climb, while its north side offers an unpaved track for mountain biking. The Strada dell'Assietta and Colle dell'Assietta (2472 m) is a celebrated route for mountain bikers. For more cycling options, you can explore Road Cycling Routes around Bardonecchia.
The passes offer breathtaking panoramic views. From Mulattiera Pass, you can see peaks like Pierre Menue and the Dolomite ridge. The Col du Granon (2,413 m) provides sensational views over the Guisane Valley and the Massif des Écrins. The Col du Sommeiller Gravel Climb offers a spectacular 360° view at its summit, often featuring a stunning blue-turquoise lake.
Most high-altitude passes are typically accessible only between July and September due to snow. This period offers the best conditions for cycling, hiking, and enjoying the views. For example, the Col du Sommeiller Gravel Climb is usually open during these months. Certain sections of the Strada dell'Assietta are closed to motorized vehicles on Wednesdays and Saturdays during July and August, enhancing the experience for cyclists and hikers.
Yes, the region is known for its unpaved military roads. The Col du Sommeiller Gravel Climb is primarily an unpaved military road, making it a premier destination for mountain biking and 4x4 enthusiasts. The Strada dell'Assietta and Colle dell'Assietta (2472 m) is also a 34-kilometer unpaved road popular for adventure activities.
The mountain passes around Bardonecchia are excellent for various outdoor activities. You can find numerous options for road cycling, mountain biking, and hiking. For detailed routes, explore guides like Road Cycling Routes around Bardonecchia, Mountain Hikes around Bardonecchia, and Hiking around Bardonecchia.
Yes, many passes serve as starting points or segments of hiking trails. For instance, the Col de la Vallée Étroite provides access to the charming Granges de la Vallée Etroite and is suitable for hiking. The Strada dell'Assietta is also popular with hikers. You can find more specific hiking routes in the Hiking around Bardonecchia guide.
Visitors frequently highlight the spectacular views, the challenging yet rewarding terrain, and the sense of adventure. The historical significance, with ancient forts and military ruins, also adds a unique dimension. Many appreciate the remote and rugged nature of passes like Mulattiera Pass, and the unique experience of reaching high altitudes like the Col du Sommeiller Gravel Climb.
Yes, some passes offer facilities. At the summit of Col du Granon (2,413 m), you can find a military base and a small restaurant with a sun terrace. Near the Col de la Vallée Étroite, the Granges de la Vallée Etroite village offers refuges, public fountains, and a bar-restaurant.
While many passes are challenging, the route to Col de la Vallée Étroite is generally considered an easy to moderate experience for mountain biking and hiking, offering beautiful natural surroundings in a peaceful area. This might be a good option for those looking for a less strenuous outing.
Yes, the Strada dell'Assietta and Colle dell'Assietta (2472 m) has specific regulations. During July and August, certain sections are closed to motorized vehicles on Wednesdays and Saturdays, making it ideal for cyclists and hikers. It's always advisable to check local conditions before planning your trip.
The Col du Sommeiller Gravel Climb stands out as one of the highest points in Europe reachable by a dirt road, at an elevation of 2,993 meters. Its challenging 26-kilometer unpaved climb from Bardonecchia, culminating in a stunning blue-turquoise lake at the summit, offers an unparalleled adventure road experience for mountain biking and 4x4 enthusiasts.


See even more epic mountain passes by checking out these guides around Bardonecchia: