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Road cycling routes
France
Auvergne Rhône Alpes
Grenoble

Lac du Chambon

The best road cycling routes around Lac du Chambon

4.3

(593)

46,302

riders

54

rides

Road cycling routes around Lac du Chambon traverse a landscape shaped by volcanic activity, nestled within the Massif du Sancy in the Auvergne Volcanic Regional Nature Park. The region features a volcanic dam lake at 850 meters altitude, surrounded by volcanic peaks, extensive forests, and flowering meadows. Cyclists encounter varied terrain, from well-paved roads around the lake to challenging mountain passes with significant elevation gains.

Best road cycling routes around Lac du Chambon

  • The most popular road cycling route is Lac du Chambon and its dam – Lake Chambon loop from Mizoën, a 24.9 miles (40.0 km) trail that takes 2 hours 42 minutes to complete. This difficult route offers a comprehensive loop around the volcanic lake and its dam.
  • Another top favourite among local road cyclists is Lautaret Pass – Col du Granon summit loop from Le Freney-d'Oisans, a difficult 73.2 miles (117.9 km) path. This route incorporates significant mountain passes, providing extensive climbs and panoramic views.
  • Local road cyclists also love the Col d'Ornon – Alpe d'Huez Climb loop from Mizoën, a 51.4 miles (82.8 km) trail leading through mountainous terrain, often completed in about 5 hours 31 minutes. This challenging route includes the iconic ascent to Alpe d'Huez.
  • Road cycling around Lac du Chambon is defined by volcanic peaks, dense forests, and high mountain passes. The network offers options for moderate to very challenging rides, catering to various fitness levels.
  • The routes in Lac du Chambon are highly rated by the komoot community with an average score of 4.4 stars from over 500 reviews. More than 48,000 road cyclists have used komoot to explore Lac du Chambon's varied terrain.

Last updated: July 2, 2026

4.0

(8)

490

riders

#1.

Lake Chambon – Lautaret Pass loop from Le Freney-d'Oisans

50.5km

02:52

1,180m

1,180m

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

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Hard

Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard
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Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Popular around Lac du Chambon

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Tips from the Community

Baptiste
September 20, 2025, Auf dem Weg zum Lautaret

The Col du Lautaret has long been used as a communication route between Grenoble and Briançon, and even as a means of access to Italy via the Alps. The road to the Col du Galibier, on the southern slope, starts from the Col du Lautaret. The Guisane River rises at the Col du Lautaret. This pass is also part of the Route des Grandes Alpes.

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A beautiful route, though challenging, with the last 4 kilometers reaching between 8.5 and 10%. The descent is on a rough road with many potholes. After 5 kilometers, it becomes easier again. A truly stunning route with little to no traffic and beautiful scenery.

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Fabrizio Garofolo
August 30, 2025, Fontaine

To fill the water bottles.

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unvara
August 23, 2025, Fontaine

Drinking water point in Mizoën.

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This road away from the traffic offers a sublime view.

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A majestic mountain that towers above all the others.

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A lake with beautiful colors.

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A lake with crystalline colors.

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Frequently Asked Questions

How many road cycling routes are available around Lac du Chambon?

There are over 60 road cycling routes available around Lac du Chambon, catering to a wide range of skill levels. You'll find options from moderate to very challenging rides through the volcanic landscapes.

What kind of difficulty levels can I expect for road cycling routes in this region?

The routes around Lac du Chambon offer diverse difficulty levels. There are 17 easy routes, 27 moderate routes, and 19 difficult routes, ensuring options for beginners to advanced cyclists. The region is known for its significant elevation gains and mountain passes.

Are there any easy or beginner-friendly road cycling routes around Lac du Chambon?

Yes, for those seeking an easier ride, there are 17 routes classified as easy. Additionally, a 4.5 km green cycle path runs along the lake, providing a safe and family-friendly option away from traffic. You can also explore moderate routes like the Lac du Chambon and its dam – Les Deux Alpes loop from Le Freney-d'Oisans, which offers a 23.9 km ride with manageable elevation.

What are some challenging road cycling routes for experienced riders?

Experienced riders will find plenty of challenging options, with 19 difficult routes available. Notable climbs and loops include the Lac du Chambon and its dam – Lake Chambon loop from Mizoën, a 40 km route with over 1290m of elevation gain. For even greater challenges, consider the Lautaret Pass – Col du Granon summit loop from Le Freney-d'Oisans, spanning nearly 118 km with almost 3000m of ascent, or the iconic Col d'Ornon – Alpe d'Huez Climb loop from Mizoën.

When is the best season for road biking around Lac du Chambon?

The best season for road biking around Lac du Chambon is generally from late spring through early autumn. During these months, the weather is more stable, and mountain passes are typically clear of snow, offering ideal conditions to enjoy the volcanic landscapes and flowering meadows.

Are there scenic road cycling routes with panoramic views of the region?

Absolutely. Many road cycling routes in the Lac du Chambon area offer magnificent panoramic views. As you cycle, you'll be treated to vistas of the Sancy Massif, the serene lake itself, and dramatic volcanic landscapes. The ascent of the Col du Lautaret, for instance, provides stunning scenery, including views of Lac du Chambon.

What natural features or landmarks can I see while road cycling around Lac du Chambon?

The region is rich in natural beauty. You can cycle past the Lac du Chambon and its dam, a volcanic lake surrounded by lush greenery. Routes often incorporate significant climbs like the Ascent of Col de Sarenne from Lac du Chambon or the Climb to Les Deux Alpes, offering breathtaking views of the Massif du Sancy and the Auvergne Volcanic Regional Nature Park.

Are there any specific cycling paths or dedicated routes for road bikes?

Yes, a 4.5 km green cycle path runs along Lac du Chambon, providing a dedicated and safe option for cyclists. While many routes utilize well-maintained roads, some segments may be unpaved. The region also participates in programs like the Oisans Col Series, which offers car-free rides on certain passes during specific times, enhancing the cycling experience.

What do other cyclists enjoy most about road cycling in Lac du Chambon?

The road cycling routes around Lac du Chambon are highly rated by the komoot community, with an average score of 4.4 stars from over 500 reviews. Cyclists often praise the diverse terrain, from well-paved roads around the lake to challenging mountain passes, and the stunning panoramic views of the volcanic landscapes and the Sancy Massif.

Are there any towns or villages nearby that are good starting points or offer amenities for cyclists?

Towns like Mizoën and Le Freney-d'Oisans are common starting points for many routes, as seen in tours like the Lac du Chambon and its dam – Lake Chambon loop from Mizoën. These areas, along with spa resorts like La Bourboule and Saint-Nectaire, offer amenities and are good bases for exploring the region.

Can I find circular road cycling loops around Lac du Chambon?

Yes, circular loops are a popular way to experience the region. A prominent example is the Lac du Chambon and its dam – Lake Chambon loop from Mizoën, which offers a comprehensive circuit around the volcanic lake. Many other routes are designed as loops, allowing you to start and finish in the same location while exploring different parts of the Massif du Sancy.

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