4.6
(132)
904
riders
29
rides
Gravel biking around Fontanil-Cornillon offers diverse terrain at the foot of the Chartreuse Massif, facing the Vercors Massif. The region features significant limestone rock outcrops, such as the Rocher du Cornillon, providing elevated viewpoints. Its landscape includes extensive forests and semi-natural environments, which contribute to a network of unpaved roads and forest paths ideal for gravel cycling. This area provides varied elevation changes and mountain passes suitable for challenging gravel bike routes.
Last updated: July 3, 2026
4.7
(15)
98
riders
66.7km
03:11
130m
130m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.5
(4)
47
riders
29.7km
02:17
670m
670m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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4.5
(17)
58
riders
25.3km
01:58
570m
570m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(3)
42
riders
45.3km
03:03
320m
320m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.9
(10)
31
riders
17.5km
01:16
330m
330m
Hard gravel ride. Good fitness required. You may need to push your bike for some segments of this route.
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It is indeed Chartreuse. There is also a "must-see" that presents "a magnificent view" of Chartreuse when it is actually Belledonne!!
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A very nice place for a picnic. Tables, trash cans.
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Very pretty, but it's not the Vercors, it's the Chartreuse, Mont St Eynard to be exact.
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there we are finally almost out of the city
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There are over 25 gravel biking routes around Fontanil-Cornillon, offering a range of experiences from moderate to difficult. You'll find a diverse network of trails suitable for various skill levels.
While many routes around Fontanil-Cornillon are considered difficult, there are a few moderate options available. For a less strenuous ride, consider routes that stick closer to the Isère River valley, which tend to have less elevation gain and smoother terrain. One such route is Along the Isère River – Lovely road in the valley loop from Grenoble.
The terrain around Fontanil-Cornillon is highly varied, reflecting its position at the foot of the Chartreuse Massif. You can expect a mix of unpaved roads, forest paths, and tracks. The geological makeup, primarily limestone and marno-limestone, contributes to diverse surfaces, from smooth gravel to more challenging rocky sections, often with significant elevation changes as you climb towards viewpoints.
Yes, experienced riders looking for a challenge will find several long and demanding routes. For instance, the Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble covers nearly 60 km with over 1400 meters of elevation gain, offering a substantial ride through mountainous landscapes.
The region offers stunning natural landmarks and panoramic viewpoints. You can expect views of the Chartreuse Massif and the Vercors Massif. Notable highlights include the La Molière Alpine Pasture and Panoramic View, Charande Summit, and Charmant Som summit. The Rocher du Cornillon itself is a prominent natural feature offering elevated vistas.
Many of the gravel routes around Fontanil-Cornillon are designed as loops, allowing you to start and end at the same point. For example, the View of Grenoble – Old streetcar track loop from Grenoble offers a circular tour with scenic views.
The best time for gravel biking in Fontanil-Cornillon is generally from spring to autumn. During these seasons, the weather is more favorable, and the trails are typically clear of snow, especially at higher elevations in the Chartreuse Massif. Summer offers warm conditions, while spring and autumn provide pleasant temperatures and vibrant scenery.
Beyond the natural beauty, the area offers unique cultural points. While on your ride, you might encounter a unique chapel without doors or windows showcasing frescoes, or explore the ethnobotanical garden dedicated to traditional plant knowledge. The Désert J.J. Rousseau – Jean Jacques Rousseau desert loop from Grenoble also passes through areas with historical significance.
The komoot community highly rates the gravel biking experience around Fontanil-Cornillon, with an average score of 4.58 stars. Reviewers often praise the diverse terrain, the stunning panoramic views of the Chartreuse and Vercors massifs, and the tranquil environment that provides a refreshing escape from urban areas.
Fontanil-Cornillon is situated near Grenoble, which has good public transport links. While direct access to all trailheads by public transport might vary, you can often reach starting points in or near Fontanil-Cornillon via local bus services from Grenoble. Planning your route in advance and checking local transport schedules is recommended.
Yes, some routes utilize former transport infrastructure, offering unique riding experiences. For example, the Faucherand gallery – Old streetcar track loop from Grenoble follows an old streetcar track, providing a distinct historical element to your gravel ride.


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