Best mountain passes around Flaxieu are situated in a region known for its scenic mountain landscapes, particularly near Thézillieu. This area in France offers various passes popular for cycling and enjoying natural views. The passes provide expansive vistas of the surrounding French Alps and the Rhône valley. These routes are accessible from Flaxieu and are appreciated for their natural beauty and challenging ascents.
Last updated: June 26, 2026
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Great pass with very little traffic which allows you to enjoy a panorama in complete tranquility. The viewpoint at the summit offers a beautiful view of the Chautagne and Lake Bourget from the paragliding departure slope (accessible from a path from the parking lot up there) 🪂 Pass accessible 2km from Chindrieux station or 11km from Culoz station 🚃
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There is a new section of the Via Rhona between Motz and Serriere en Chautagne. It is well signposted towards Motz and then winds through fields and parallel to the main road without much guidance.
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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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Magnificent pass, view of Lake Bourget all along.
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Super pass, regular, with a view of the Bauges on the Cessens side.
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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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nice walk through the forest of Moye
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The region offers several passes with magnificent views. The Chambotte Pass provides stunning vistas of Lac du Bourget and the Alps. The Col du Grand Colombier offers a superb panorama of the Jura, the Alps, and Lake Bourget. Additionally, the Col du Petit Pertuis, located nearby, is known for its magnificent views of the Alps and the Rhône valley.
Yes, for those seeking a challenge, the Col du Grand Colombier is renowned for its steep slopes over several kilometers, especially when ascending from Virieu-le-Petit or Culoz. The Col du Clergeon also presents a tough climb, particularly from the west side.
On clear days, you might be able to spot Mont Blanc from several passes. The Chambotte Pass and the Col du Grand Colombier are known for offering glimpses of Mont Blanc. The Col du Petit Pertuis is also cited as a location where Mont Blanc can sometimes be seen.
If you prefer a quieter experience, the Col du Clergeon is known for having less car traffic compared to neighboring passes like Sapenay and Chambotte. Similarly, the Col du Sapenay is described as little frequented and largely shaded, offering a more tranquil ascent.
The area around Flaxieu is excellent for various outdoor activities. You can find numerous road cycling routes, including challenging climbs like the "Culoz to Col du Grand Colombier" route. There are also touring bicycle options such as "Le Col du Colombier — loop from Culoz" and mountain biking trails like the "ViaRhôna – Lac de Serrières loop from Lavours." For more details on routes, you can explore the Road Cycling Routes around Flaxieu, Cycling around Flaxieu, and MTB Trails around Flaxieu guides.
While many passes are popular for cycling, some also offer opportunities for hiking. The Col du Clergeon, for instance, is an ideal starting point for short and quiet digestive walks through its forest climbs. For more specific hiking routes, you can check the various cycling and MTB guides mentioned, as many of these paths can also be explored on foot.
Visitors frequently praise the magnificent views, especially of Lac du Bourget and the Alps, often including Mont Blanc on clear days. The challenging ascents, particularly on passes like the Col du Grand Colombier, are a draw for cyclists. The quiet forest climbs and less traffic on passes like Col du Clergeon are also highly appreciated.
Yes, both the Col du Clergeon and the Col du Sapenay feature beautiful forest climbs. The Col du Clergeon is known for its quiet forest paths, while the Col du Sapenay is largely shaded by trees, offering a pleasant experience.
To avoid heavy traffic, especially on popular routes like the Chambotte Pass, it's recommended to visit outside the summer season. Spring and autumn generally offer pleasant weather for cycling and hiking, with fewer crowds and comfortable temperatures. Always check local weather conditions before your visit.
While some passes might have limited facilities, the Chambotte Pass is noted to have a water point at the level of the pass. However, for more remote or challenging passes like the Col du Grand Colombier, it's advised that there are no aid stations, so it's best to come prepared with your own supplies.
While many passes offer challenging ascents, some can be enjoyed by families, especially for scenic drives or shorter walks. Passes with less traffic and shaded sections, such as the Col du Sapenay or the Col du Clergeon, might be more suitable for a relaxed family experience. Always consider the difficulty and length of the route when planning with children.


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