Mountain passes around Le Bourg-D'Oisans, nestled in the French Alps, offer access to iconic and challenging routes. This region is a hub for cyclists and outdoor enthusiasts, known for its demanding ascents and rich cycling history. The area features diverse terrain, from legendary Tour de France climbs to quieter, scenic routes.
Last updated: May 14, 2026
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Road Cycling Routes around Le Bourg-D'Oisans
Cycling around Le Bourg-D'Oisans
Pass above Villard-Reymond. Be careful, turn left just before entering the village! This officially listed but little-known pass offers a breathtaking view of the 21 bends of Alpe d'Huez!!! Not to be missed!
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The most beautiful hill to climb in these areas.
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From Le Bourg-d'Oisans the pass is very pleasant to drive.
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An iconic climb ridden countless times in the Tour de France.
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One of my favourite climbs in the area. There are four short unlit tunnels 1km out of Bourg on the start of the climb and they're quite poorly surfaced, especially the final one, so it's best to do this one with a decent set of lights. Lot of people stop and turn around at the village of Villard Notre Dam when the tarmac stops but if you keep going, I think the gravel section is the best bit - it's about 2.5km long to the top and it's do-able on a road bike - and if you're lucky you might see a marmot or two, especially if you ride it in the morning. Once you start to descend it's worth a detour to the cafe in Villard Reymond - the L'Eau Blanche.
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The Col d'Ornon, perched at 1,371 meters above sea level in the French Alps, is a captivating mountain pass offering spectacular views. Famous for cycling and hiking, its winding roads and trails invite adventure.
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Traffic-calmed climb without extreme gradients. Fun to do from both sides.
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Le Bourg-d'Oisans is a hub for iconic cycling climbs. Among the most popular are the legendary Alpe d'Huez Climb, famous for its 21 hairpin bends and Tour de France history. Other highly regarded passes include the challenging Col de la Croix de Fer and Col du Galibier, both known for their demanding ascents and stunning alpine scenery.
Yes, for a more moderate ride, the Ornon Pass is a great option. It's known for its scenic, bucolic landscapes and less extreme gradients, making it accessible for a wider range of cyclists. The Col du Lautaret also offers beautiful high-alpine scenery without the extreme gradients of some other passes.
Many passes in the region boast incredible views. The Col du Galibier, one of the highest paved passes, offers awe-inspiring panoramic views of vast mountain ranges. The Col de la Croix de Fer provides stunning alpine scenery, including views of glaciers and the Aiguilles d'Arves. For a quieter experience with wild landscapes, the Sarenne Pass is highly recommended for its natural spectacle.
The terrain varies from legendary, challenging climbs like Alpe d'Huez with its 21 hairpin bends and 8% average gradient, to rugged and demanding ascents like Col du Glandon (7% average gradient). Some passes, such as Col de Sarenne, can have rougher road surfaces in parts, while others like Ornon Pass offer smoother, traffic-calmed routes with moderate slopes.
The best time to visit the mountain passes around Le Bourg-d'Oisans is typically during the late spring, summer, and early autumn months (roughly June to September). During this period, the passes are generally clear of snow, and the weather is most favorable for cycling and other outdoor activities. Always check local conditions before planning your trip, especially for higher passes like Col du Galibier, which can open later in the season.
While many passes are challenging, some offer sections or alternative routes that are more suitable for families or less experienced cyclists. The Col d'Ornon, for example, is known for its charming, less demanding routes through bucolic landscapes. For easier cycling, consider exploring routes in the valleys or along lakes, which can be found in guides like Cycling around Le Bourg-D'Oisans.
Beyond cycling, the region offers a wealth of outdoor activities. You can find numerous hiking trails, from easy walks to challenging treks, often providing stunning views of the passes and surrounding mountains. Mountain biking is also very popular, with dedicated routes available. For more information on routes, check out guides such as MTB Trails around Le Bourg-D'Oisans and Cycling around Le Bourg-D'Oisans.
Absolutely. While passes like Alpe d'Huez attract many visitors, the Sarenne Pass is often cited as a quieter, wilder alternative or extension to the Alpe d'Huez climb. It offers stunning natural landscapes with significantly less traffic. The Ornon Pass is another excellent choice for a more tranquil experience through small mountain hamlets.
Many of the mountain passes around Le Bourg-d'Oisans are steeped in cycling history, particularly due to their frequent inclusion in the Tour de France. Alpe d'Huez is perhaps the most famous, considered a pilgrimage site for cyclists. The Col du Galibier and Col de la Croix de Fer are also legendary climbs that have shaped the history of professional cycling, offering a chance to ride in the footsteps of champions.
The Alpe d'Huez Climb is a significant challenge. It features 21 hairpin bends over 14 kilometers with an average gradient of 8%. Pacing yourself is key, especially on the steeper sections. Many cyclists aim to beat the fastest ascent times, but enjoying the historic climb and the panoramic views from the top is equally rewarding. Each hairpin bend is numbered and often named after a Tour de France winner, adding to its unique character.
Komoot offers several guides with detailed cycling routes in the area. For road cycling, you can explore Road Cycling Routes around Le Bourg-D'Oisans, which includes routes like the 'Alpe d'Huez and Col de Sarenne Loop' and the 'Col de la Croix de Fer Climb from Allemond'. The Cycling around Le Bourg-D'Oisans guide also provides various options.
The Col de la Croix de Fer (2,067m) is a long, challenging pass known for its stunning alpine scenery and views of glaciers. It's often combined with the Col du Glandon (1,924m), which is known for its rugged beauty and demanding gradients. Both passes offer a true high-mountain experience and are frequently featured in the Tour de France, making them a must for cycling fans.
The Sarenne Pass, while offering stunning wild landscapes and low traffic, can have varying road conditions. Parts of the road from Alpe d'Huez to Col de Sarenne might be a little damaged or have gravel, as noted by visitors. However, the section from Col de Sarenne to Lac de Chambon is generally reported to have a good road surface. It's advisable to be prepared for potentially rougher patches, especially if cycling.


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