Best mountain passes around Seyssel are situated in a unique commune straddling both the Ain and Haute-Savoie departments in France. This area serves as a gateway to several notable mountain passes, offering challenging climbs and serene natural beauty. These passes are popular among cyclists and those seeking scenic drives in the Auvergne-Rhône-Alpes region. The landscape features views of valleys and mountainous terrain, characteristic of the French Alps and its foothills.
Last updated: June 26, 2026
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Popular around Seyssel
Follow the sun – riding from Germany to the south of France
Rhone Cycle Route — From the southern Jura to Lyon
Gravel in Ain — sporty loops between water and mountain
‘La Joyeuse Vadrouille’ – two months cycling with the family
Follow the Huguenots — from Grenoble to Geneva on the GR 965
ViaRhôna — ride from the Alps to the Mediterranean
Road Cycling Routes around Seyssel
Cycling around Seyssel
Running Trails around Seyssel
Hiking around Seyssel
A few kilometers south of the Grand Colombier, this pass at 1316 meters is at the intersection of the Arvière valley, the Grand Colombier and the Sur Lyand ridges.
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Located on the heights of Mont Clergeon to the north of Lac du Bourget, the Col du Clergeon – 979 m – has the particularity of belonging to a non-Alpine massif, in this case that of Jura but also to the department of Savoie which is naturally affiliated with the Alps. WEST SIDE This slope starting at Ruffieux, located just opposite the Grand Colombier, has an air copied from that of its illustrious neighbor: certainly shorter with 8.8 km but at 8.5% on average! Around fifteen bends will help you climb the 728 m of positive altitude difference. Still count on a big passage of 1840 m at 10.5% to reach the Col du Clergeon at 979 m above sea level which marks the border with Haute-Savoie. EASTERN SIDE This slope starts at Rumilly in… Haute-Savoie. It offers a positive altitude difference equivalent to the western slope with 772 m but being longer with 15 km, the difficulty is a little less with an average slope of 6.5%. However, the ascent is tricky because it has 2 descents that will have to be climbed back up and a long passage of 3.4 km on a slope of between 8.5 and 9.5%. Small sweetness: the finale won't be too difficult. Sources: Alpes4ever
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Regular climb, on one side or the other. Be careful, however, if you arrive at the top in "limit": there are two "passes" which follow one another in two km, this can give a little blow to morale when the legs respond less well 😉
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Every second Saturday in June, July, August and September. from 7 a.m. to 3 p.m., the climb to the Grand Colombier from Culoz is reserved for cyclists, without registration.
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Long and difficult climb, fantastic views along the way. Spicy increase percentages.
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Long and difficult climb, fantastic views along the way. Spicy increase percentages.
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Discovered by the Tour de France, it is now a legendary mountain. I recommend the climb from Culoz with its spectacular hairpin bends and great views of Lac du Bourget. 17 km ascent, partly up to 14% incline, but with 2 longer flat sections that allow some relaxation. Wonderful all-round view at the summit, with snack bar and souvenir shop in the nice season.
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Superb panorama. Multiple trails lend themselves to hiking.
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For a significant challenge, the Col du Grand Colombier is renowned for its demanding ascent, with sections reaching steep gradients. The ascent of Col du Clergeon from the west is also considered quite tough, appealing to those seeking a rigorous cycling experience.
The mountain passes around Seyssel offer magnificent panoramic views. From the Col du Grand Colombier, you can enjoy superb vistas of the Rhône, Lac du Bourget, the entire Alpine arc, and even Mont Blanc on a clear day. The Col de Richemond (1060 m) also provides magnificent views at its altitude.
Yes, the Col du Grand Colombier is noted for having fewer tourist crowds at its summit compared to other prominent passes, allowing for a more relaxed appreciation of the natural environment. Similarly, the Col du Clergeon features very low car traffic, making it a peaceful route, especially for cyclists.
The region around Seyssel's mountain passes is excellent for various outdoor activities. You can find numerous hiking trails, ranging from easy to moderate, such as the 'Eilloux Waterfall Loop Trail'. For cyclists, there are many road cycling routes, including challenging climbs like the 'Col de la Biche via Injoux'. Mountain biking enthusiasts can explore MTB trails like the 'Old bridge of Seyssel – Grand Colombier Summit loop'.
The Col du Grand Colombier is truly wonderful for its challenging ascent, small roads with minimal traffic, and numerous magnificent views of the valley and the Alpine arc. It's a pass that has to be earned, with steep slopes, but rewards visitors with superb panoramic views from its summit, often including Mont Blanc on clear days.
The Col du Clergeon is situated between Chautagne and Rumilly and is known for its tough ascent from the west. A significant feature is its very low car traffic, making it a more peaceful and enjoyable route for cyclists compared to neighboring passes. It's also described as the least frequented of the local mountain passes, offering a beautiful forest climb from Moye.
The Col de Richemond (1060 m) is a magnificent mountain pass offering a regular climb between 5 and 6%. It provides superb views at an altitude of 1000 meters. Cyclists should be aware that there are two 'passes' that follow one another within two kilometers, which can be a mental challenge if legs are tiring.
The Col du Grand Colombier is a challenging pass, and while it offers a rewarding experience with magnificent views, visitors should note the absence of aid stations or amenities at the very top. It's best to come prepared with your own supplies.
Absolutely. The mountain passes around Seyssel are very popular with cyclists. For a challenging experience, consider the 'Col de la Biche via Injoux' or the 'Old Town of Seyssel – Route de La Chambotte loop'. Many routes, including the 'Rhône Cycling Loop', offer varying degrees of difficulty. You can find more details on road cycling routes around Seyssel.
The mountain passes around Seyssel are generally best visited during the warmer months, typically from late spring to early autumn. This period ensures the roads are clear of snow and ice, making them accessible for cycling and hiking, and allows for the best enjoyment of the scenic beauty.
The Charbemènes Pass, located a few kilometers south of the Grand Colombier, sits at an elevation of 1316 meters. It is notable for its strategic location at the intersection of the Arvière valley, the Grand Colombier, and the Sur Lyand ridges, offering a unique perspective of the surrounding landscape.
While some mountain passes present challenging climbs, the broader Seyssel area offers easier options. For instance, several hiking trails are rated as easy, such as the 'Eilloux Waterfall Loop Trail' or the 'Vieux Pont de Seyssel – La Cascade d'Eilloux loop from Seyssel', which could be suitable for families looking for less strenuous activities.


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