4.4
(53)
1,027
riders
21
rides
Mountain biking around Réservoir De Grand-Maison offers routes through the French Alps, characterized by high-altitude terrain and diverse landscapes. The reservoir, situated at an elevation of 1698 meters, is framed by the Belledonne and Grandes Rousses massifs. This region features challenging ascents and descents, with access via renowned mountain passes like Col du Glandon and Col de la Croix de Fer. The Eau d'Olle valley provides a varied environment, from alpine meadows to forested sections.
Last updated: July 1, 2026
5.0
(1)
35
riders
19.5km
02:21
990m
990m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
8
riders
18.6km
01:58
710m
710m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(1)
32
riders
43.6km
06:00
2,340m
2,350m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(5)
43
riders
18.5km
02:02
670m
670m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
13
riders
12.9km
01:47
720m
730m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
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A great monument at the Tour de France.
2
0
A busy hiking trail in summer. All those lakes and vistas are beautiful.
0
0
A busy hiking trail in summer. All those lakes and vistas are beautiful.
0
0
Just want a drink? You're not allowed to sit on the terrace. (Summer peak season)
0
0
Stage to take a photo when you get to the top.
11
0
Photo booth at the finish line at Alpe d'Huez.
12
0
A trail that avoids the road from Vaujany and descends to Lac du Verney. The trail is S2 with S3 sections. It's very narrow, with a ravine on the left, and roots sometimes appear.
0
0
Beautiful glacial lake on a plateau above the Alpe d'Huez ski resort,
0
0
There are 19 mountain bike trails recorded on komoot around Réservoir De Grand-Maison. These routes cater to various skill levels, including 1 easy, 10 moderate, and 8 difficult trails.
The best time for mountain biking around Réservoir De Grand-Maison is typically during the warmer months, from late spring to early autumn. Due to its high elevation (nearly 1700 meters), snow can persist into June, and temperatures are cooler in summer, offering a refreshing alpine experience. Always check local weather conditions before heading out.
While many trails in the region are moderate to difficult, there is at least 1 easy mountain bike trail available around Réservoir De Grand-Maison. These easier options are generally more suitable for families or beginners looking for a less challenging ride.
Mountain biking around Réservoir De Grand-Maison involves diverse alpine terrain. You can expect significant elevation changes, with routes navigating through the Belledonne and Grandes Rousses massifs. Trails range from less steep sections near the reservoir to challenging ascents and descents characteristic of the French Alps, often reaching high altitudes with panoramic views.
Yes, many mountain bike trails around Réservoir De Grand-Maison offer stunning viewpoints. The region is known for its breathtaking alpine scenery, framed by the Belledonne and Grandes Rousses massifs. High-altitude routes often provide expansive vistas of the reservoir and surrounding valleys. For example, the L'Ouillon – Saint-Jean-de-Maurienne loop from Col du Glandon offers expansive alpine views.
Yes, several mountain bike trails in the Réservoir De Grand-Maison area are designed as loops. These circular routes allow you to start and finish at the same point. Examples include the La Vilette – La Fare Waterfall loop from Vaujany and the Tour des 3 lacs – L'Ouillon loop from Saint-Sorlin-d'Arves.
The Réservoir De Grand-Maison area is rich in natural features. You'll encounter the impressive Grand'Maison Dam and the reservoir itself, surrounded by the majestic Belledonne and Grandes Rousses massifs. The Eau d'Olle valley offers varied environments, from extensive forested sections to alpine meadows and, in early summer, snow-capped peaks.
Parking is generally available at key access points and trailheads around Réservoir De Grand-Maison, particularly near popular starting points for routes. For instance, routes originating from Col du Glandon or Vaujany typically have designated parking areas. It's advisable to check specific route details on komoot for recommended parking locations.
The mountain bike trails around Réservoir De Grand-Maison are highly rated by the komoot community, with an average score of 4.4 stars from over 40 reviews. More than 900 mountain bikers have explored the varied terrain, often praising the stunning alpine scenery, challenging ascents, and rewarding descents.
Yes, Réservoir De Grand-Maison offers several challenging mountain bike routes suitable for experienced riders. With 8 difficult trails available, you can expect significant elevation gains and technical sections. A notable difficult route is the L'Ouillon – Saint-Jean-de-Maurienne loop from Col du Glandon, which covers 64.8 km with substantial climbing.
Yes, some mountain bike routes in the vicinity of Réservoir De Grand-Maison can lead you to natural attractions like waterfalls. For example, the La Vilette – La Fare Waterfall loop from Vaujany specifically includes a visit to La Fare Waterfall, offering a scenic stop during your ride.


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