4.4
(207)
1,118
riders
118
rides
Mountain biking around Entre-Deux-Guiers, located in France's Auvergne-Rhône-Alpes region, offers diverse terrain within the Isère department. The area is characterized by the mountainous Chartreuse Natural Regional Park and the Chartreuse Massif, providing a backdrop of peaks and valleys. The Guiers Valley, bisected by the Guiers river, features numerous gorges and natural formations, creating varied landscapes for mountain bike trails.
Last updated: October 4, 2026
4.6
(10)
42
riders
23.3km
01:29
90m
90m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
15
riders
27.7km
03:18
860m
860m
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)
7
riders
32.5km
03:18
830m
830m
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
(2)
7
riders
34.2km
04:04
1,210m
1,210m
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
(1)
6
riders
18.3km
01:45
560m
560m
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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I love this spot for its very beautiful orientation table and the view it offers over the Chartreuse. The small chapel dates from 1902, it was rebuilt on the ruins of a medieval chapel.
0
0
Great straight in soft gravel. The route remains pleasant with views of the Chartreuse while staying on the flat.
0
0
I cycled past. This spot caught my eye and makes me want to stop there next time.
0
0
Requires a mountain bike due to the paved surfaces
0
0
Nice flat gravel path to avoid the very busy road between St Laurent du Pont and St Joseph de rivière, up to the Demay bridge. Runs along the l'Herretang canal
0
0
Small bridge, unfortunately unpaved cycle path, but beautiful landscape, partial views of the Chartreuse.
2
0
Unpaved cycle path Via Chartreuse
2
0
There are over 110 mountain bike trails around Entre-Deux-Guiers, offering a wide range of options for different skill levels. This includes 13 easy routes, 30 moderate routes, and 70 difficult trails, primarily within the mountainous Chartreuse Natural Regional Park.
Yes, the Guiers valley offers several family-friendly options. For instance, the L'Herretang mountain bike route is a blue-difficulty trail suitable for families and electric mountain bikes, passing through agricultural land and alongside the Guiers river. Another easy option is the Canal de l'Herretang – Pont le l'herretang loop from Entre-deux-Guiers, which follows the Canal de l'Herretang for a less strenuous ride.
The region is rich in natural beauty, dominated by the Chartreuse Natural Regional Park and the Chartreuse Massif. You'll encounter the picturesque Guiers Valley, numerous gorges like the Gorges du Guiers Vif and Gorges du Crossey, and the tranquil Guiers river. The area also features stunning sites like La Grande Sure and the Mount Outheran.
Yes, many trails in the area are circular. A popular difficult option is the Old Saint-Martin Bridge – The Sarde Road loop from Entre-deux-Guiers, which covers 24.8 km with significant elevation gain. For a moderate challenge, consider the Canal de l'Herretang loop from Les Jardins de Malissard.
Many trails offer views of historical and natural landmarks. You might pass by the Old Saint-Martin Bridge, or ride through areas with views of the Gorges du Guiers Mort. The region is also home to the historic Caves Saint Christophe and the Museum of the Grande Chartreuse, which are worth exploring off the bike.
While not directly on the mountain bike trails, the nearby Cirque of Saint-Même is renowned for its four impressive waterfalls: Cascade des Sources, Grande cascade, Cascade Isolée, and Pisse du Guiers. These are accessible and make for a beautiful side trip.
The region's diverse terrain, from valley routes to mountainous sections, means mountain biking is enjoyable across multiple seasons. Spring and autumn offer pleasant temperatures and vibrant scenery, while summer provides warmer conditions for exploring higher elevations. Always check local weather conditions before heading out.
The mountain bike trails around Entre-Deux-Guiers are highly regarded by the komoot community, with an average rating of 4.3 stars from over 160 reviews. More than 900 mountain bikers have used komoot to explore the varied terrain, often praising the challenging climbs and scenic descents within the Chartreuse Massif.
Absolutely. The Chartreuse mountains provide excellent opportunities for experienced riders seeking technical sections and significant elevation. A challenging option is the Canal de l'Herretang – Col des Mille Martyrs loop from Entre-deux-Guiers, a 32.5 km trail with over 800 meters of elevation gain. Another difficult route is the Combes Bridge – Steep Path to Miribel loop from Entre-deux-Guiers.
While specific public transport options directly to trailheads can vary, Entre-Deux-Guiers is situated within the Isère department of the Auvergne-Rhône-Alpes region, which has regional transport networks. For detailed information on bus services or train connections to nearby towns, it's best to consult local transport authority websites like Chartreuse Tourisme for the most up-to-date schedules and routes.
As the trails are largely within the Chartreuse Natural Regional Park, it's advisable to respect park regulations. This typically includes staying on marked trails, protecting wildlife and vegetation, and being mindful of other park users. For specific details on mountain biking permits or rules, it's recommended to check the official Chartreuse Natural Regional Park website.


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