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Mountain biking trails

Auvergne Rhône Alpes

Jean Jacques Rousseau desert – View of Grenoble loop from Fontaine

Mountain biking trails

Auvergne Rhône Alpes

Jean Jacques Rousseau desert – View of Grenoble loop from Fontaine

Hard

4.2

(18)

177

riders

Jean Jacques Rousseau desert – View of Grenoble loop from Fontaine

02:16

21.0km

730m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is right next to a parking lot.

Last updated: August 25, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 5.78 km for 496 m

After 8.77 km for 863 m

Waypoints

A

Start point

Parking

Get Directions

1.67 km

Château Borel

Castle

2.42 km

Viewpoint

Viewpoint

3

6.38 km

Jean Jacques Rousseau desert

Highlight • Forest

The walk along the limestone cliffs is quite surprising. Very rolling track, but very busy, caution necessary

Translated by Google •

Tip by

4

9.30 km

Froussard Farm

Highlight • Settlement

Good morning
When a portion of the route includes a section prohibited for cycling, why not indicate the real reason.
Ex: footbridge, private property, ...
..ect.
Because I examined 1 …

Translated by Google •

Tip by

5

10.5 km

Former Mink Farm

Highlight • Other

for a picnic break

Translated by Google •

Tip by

6

11.3 km

View of Grenoble

Highlight • Other

About halfway up the Vercors you will be rewarded with a fantastic view of Grenoble and the Isère Valley. The town of La Tour sans Venin, which is about a …

Translated by Google •

Tip by

7

11.9 km

Orientation table at the Tour Sans Venin

Highlight • Viewpoint

This orientation table dates back to 1924. To reach it, take the path to the right uphill from the main road. The panorama is interesting, with a 360-degree view of the Vercors, Chartreuse, and Belledone.

Translated by Google •

Tip by

8

13.2 km

Old streetcar track

Highlight • Other

Great trail that climbs to Saint-Nizier and avoids the dangerous road... Newly marked Via du Tram with historical signs and photos.

Translated by Google •

Tip by

9

14.1 km

Large Tunnel

Highlight • Other

Be careful it is very dark in the tunnel Not easy to drive in the dark, the balance is disturbed

Translated by Google •

Tip by

18.2 km

boyau

Cave Entrance

11

19.1 km

Coup de Sabre Gorge

Highlight • Gorge

see also photosphere google.com/maps/place/Le+Coup+de+Sabr%C3%A9/@45.192543,5.6674056,3a,75y,72.31h,172.88t/data=!3m8!1e1!3m6!1sAF1QipMEmRPImTZ9M631CU3N6paXShBUnSGvVIFxAVcD!2e10!3e11!6shttps:%2F%2Flh5.googleusercontent.com%2Fp%2FAF1QipMEmRPImTZ9M631CU3N6paXShBUnSGvVIFxAVcD%3Dw224-h298-k-no-pi-20-ya159.99998-ro-0-fo100!7i8192!8i4096!4m7!3m6!1s0x478af2fe0e56f45f:0x1e8f415dab2010e5!8m2!3d45.192303!4d5.667925!14m1!1BCgIgARICCAI

Tip by

B

21.0 km

End point

Parking

Way Types & Surfaces

Way Types

11.9 km

2.85 km

2.60 km

2.03 km

1.37 km

255 m

Surfaces

7.75 km

5.86 km

5.46 km

1.09 km

665 m

179 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (810 m)

Lowest point (210 m)

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Weather

Powered by Foreca

Wednesday 26 August

31°C

19°C

0 %

Additional weather tips

Max wind speed: 13.0 km/h

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