4.5
(155)
791
riders
80
rides
Mountain biking around Lac de Petichet, located in the Matheysin plateau of the Isère department, offers diverse terrain for riders. The region is characterized by its natural glacial lakes, including Lac de Petichet itself, and is framed by mountains such as Obiou and Grand Serre. Terrain varies from gentle lakeside paths to challenging ascents through forests and alpine meadows, featuring ground and grit paths. This varied landscape provides a comprehensive network of routes for mountain bikers.
Last updated: July 1, 2026
4.8
(17)
92
riders
35.6km
04:07
1,070m
1,070m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.8
(18)
56
riders
36.7km
03:18
720m
720m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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5.0
(6)
31
riders
17.8km
01:49
490m
480m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.3
(3)
24
riders
18.8km
01:54
460m
460m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.0
(3)
16
riders
24.5km
02:22
620m
620m
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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The little road that goes down from Cholonge is great and on arrival you have a superb view of Lake Lafrey
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Very beautiful panorama once you arrive at the Pierre Percée!
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I did it on gravel, climbing via the Aveillans hill (west), it was fine. Direct descent to Putteville, very limited at the beginning on gravel, much steeper but it was fine.
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1st part very smooth and very pleasant, 2nd part much more technical with a nice climb on a very greasy muddy path, steep slopes and quite technical descents. The final does not take the greenway recently set up and which allows you to avoid the road.
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beautiful course, technical, D+ beautiful singles
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From here you can enjoy a breathtaking view of Lake Laffrey and Lake Mort. Both have magnificent turquoise colored water!
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Take the time to stop and enjoy the scenery. This view of the Pierre-Châtel lake is quite rare. From here you have a perfect vantage point to see the alignment of the three lakes.
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The terrain around Lac de Petichet is quite varied, offering everything from gentle lakeside paths to more challenging ascents through forests and alpine meadows. You'll encounter ground and grit paths, with routes featuring both climbs and descents. The region is characterized by its natural glacial lakes and is framed by mountains like Obiou and Grand Serre, providing diverse and scenic landscapes.
Yes, the Lac de Petichet area offers routes suitable for various skill levels. While many trails are more challenging, there are 5 easy routes and 13 moderate routes available. These often feature scenic views and a mix of terrain that can be enjoyed by riders with good physical condition, including some that are accessible to all skill levels.
For experienced mountain bikers seeking a challenge, the region offers 58 difficult routes. These trails often involve significant elevation gain and technical sections. An example is the Bucolic landscape – La Pierre Percée loop from Cholonge, a 36.2 km difficult trail with over 1000m of elevation gain, taking around 4 hours to complete.
Many mountain biking trails in the area offer continuous scenic views of the surrounding mountains, such as Obiou and Grand Serre, and the glacial lakes. The Bucolic landscape – magnificent view !!! loop from Saint-Théoffrey is an 11 km trail specifically noted for its expansive views through forests.
Yes, many of the mountain bike routes around Lac de Petichet are designed as loops, allowing you to start and finish at the same point. For instance, the Bucolic landscape – TO DEFINE loop from Saint-Théoffrey is a moderate 36.7 km circular path offering scenic views.
Yes, a significant draw for mountain bikers in the region is the nearby Bike Park at Alpe du Grand Serre. This park is designed for downhill mountain biking, offering 8 graded trails (green, blue, red, and black) suitable for beginners to experts. It features smooth, technical descents with turns, jumps, and modules, accessible via a chairlift. You can find more information about the bike park on the Matheysine Tourisme website.
While specific parking areas for each trailhead are not detailed, Lac de Petichet is a popular outdoor destination. Parking is generally available at various points around the lake and in nearby villages like Saint-Théoffrey and Cholonge, which serve as starting points for many routes. It's advisable to check local signage upon arrival.
Information on specific public transport options directly to mountain bike trailheads around Lac de Petichet is limited. The region is best accessed by car, allowing flexibility to reach various starting points. For detailed public transport inquiries, it's recommended to consult local transport authorities or tourist information centers in the Grenoble or Matheysine area.
Generally, dogs are permitted on many outdoor trails in France, especially in natural areas, provided they are kept under control, preferably on a leash, and owners clean up after them. However, specific regulations can vary by municipality or protected area. It's always best to check local signage at trailheads for any specific restrictions regarding dogs.
The best time for mountain biking around Lac de Petichet is typically from spring through autumn (May to October). During these months, the weather is generally mild and pleasant, and trails are clear of snow. Summer offers warmer temperatures, while spring and autumn provide cooler rides and beautiful seasonal foliage. Winter mountain biking conditions can be challenging due to snow and ice at higher elevations.
There are over 75 mountain bike tours available around Lac de Petichet, offering a wide range of options for different skill levels and preferences. This includes 5 easy, 13 moderate, and 58 difficult routes.
The mountain bike routes in Lac de Petichet are highly rated by the komoot community, with an average score of 4.4 stars from over 170 reviews. More than 900 mountain bikers have used komoot to explore the varied terrain, often praising the stunning natural landscapes, diverse ecosystems, and the comprehensive network of trails.


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