4.4
(43)
399
riders
40
rides
Mountain bike trails around Les Costes offer a diverse landscape for riders, characterized by significant elevation changes and routes that traverse river valleys and mountainous terrain. The region features a mix of challenging climbs and descents, often following natural waterways like the Drac and Séveraisse rivers. Riders can expect to encounter varied surfaces, from forest paths to open sections with panoramic views. This area provides a robust network for mountain biking, appealing to those seeking demanding routes.
Last updated: May 20, 2026
5.0
(1)
6
riders
37.9km
04:05
1,250m
1,250m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
4.2
(5)
61
riders
41.4km
03:30
1,080m
1,080m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

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3.7
(3)
25
riders
45.9km
03:18
760m
760m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
5.0
(1)
19
riders
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
11
riders
33.8km
03:45
1,240m
1,240m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
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The color of the water is really beautiful.
26
0
Climb with double-digit gradients in certain points.
19
0
The Chaillol village resort is located at an altitude of 1600 meters in the Champsaur valley. Its location allows it to offer a varied and sunny ski area, with activities for all levels and a range of comfortable accommodation.
4
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Nestled at an altitude of 1,650 meters, the Gioberney refuge is located at the end of the Valgaudemar valley. Its parking lot is often popular with hikers during peak season. The views from the terrace are superb and overlook a beautiful waterfall.
1
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The Sautet Dam is an engineering masterpiece nestled in a breathtaking landscape. This dam creates a serene lake, which attracts water sports enthusiasts, cyclists and hikers. It offers stunning views of the surrounding mountains.
1
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There are over 40 mountain bike trails around Les Costes, offering a diverse range of experiences. The komoot community has explored these routes over 300 times, contributing to their high average rating.
While many routes in Les Costes feature significant elevation changes, there are a few easier options available. The region offers a mix of challenging routes for experienced riders and paths suitable for those newer to mountain biking. You can filter for 'easy' routes on komoot to find suitable options.
Les Costes is well-suited for advanced mountain bikers, with 20 difficult routes out of 43 total trails. These routes often feature substantial elevation gain and demanding terrain. Examples include the Boucle de Chaillol, a 23.6-mile trail with over 1250 meters of ascent, and the Sautet dam – Pont du Loup over the Drac loop from Saint-Firmin, which explores the Drac river valley with notable ascents.
The best time for mountain biking in Les Costes is typically from late spring through early autumn (May to October). During these months, the weather is generally more stable, and trails are clear of snow, offering optimal conditions for exploring the mountainous terrain and river valleys.
Yes, many mountain bike trails in Les Costes are designed as loops, allowing you to start and finish at the same point. Notable circular routes include The Chapel of Valgaudemar – Along the Séveraisse loop from Chauffayer and The Chapel of Valgaudemar – Refuge du Gioberney loop from Saint-Jacques-en-Valgodemar, both offering extensive rides through scenic valleys.
The trails in Les Costes offer diverse scenery, including river valleys, mountainous landscapes, and panoramic views. You might encounter natural landmarks like the Infernet Gorge or pass by the Col du Noyer (1664 m). The region's routes often follow natural waterways like the Drac and Séveraisse rivers.
The mountain bike trails around Les Costes are highly rated by the komoot community, with an average score of 4.5 stars from over 40 reviews. Riders frequently praise the challenging climbs and descents, the varied landscapes, and the robust network of trails that cater to demanding rides through river valleys and mountainous terrain.
While popular routes like the Boucle de Chaillol attract many riders, the extensive network of over 40 trails means you can often find quieter paths. Exploring some of the less-known routes or riding during off-peak times can help you discover more secluded experiences.
Many trails in Les Costes pass through or near small villages and hamlets where you can find local cafes or shops for refreshments. For example, routes exploring the Valgaudemar valley, such as The Chapel of Valgaudemar – Along the Séveraisse loop from Chauffayer, may offer opportunities to stop in towns like Chauffayer.
The mountain bike trails in Les Costes vary significantly in length. Many of the more challenging routes are quite long, such as Sautet dam – Pont du Loup over the Drac loop from Saint-Firmin at 25.7 miles (41.4 km) or The Chapel of Valgaudemar – Refuge du Gioberney loop from Saint-Jacques-en-Valgodemar at 28.7 miles (46.3 km). There are also shorter options available, like the Saint-Firmin canal bridge – Sentier des Herbeys loop from Saint-Firmin, which is 8.7 miles (14 km).


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