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Mountain biking trails

Auvergne Rhône Alpes

Crête de Brie – Hertzian Tower loop from Jarrie-Vizille

Mountain biking trails

Auvergne Rhône Alpes

Crête de Brie – Hertzian Tower loop from Jarrie-Vizille

Hard

5.0

(5)

38

riders

Crête de Brie – Hertzian Tower loop from Jarrie-Vizille

03:25

38.8km

840m

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 accessible with public transport.

Last updated: July 24, 2026

Tips

Includes segments that may be dangerous

Parts of this route comprise highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.

After 14.8 km for 47 m

After 26.0 km for 47 m

Waypoints

A

Start point

Train Station

Get Directions

1

656 m

Ascent to Château de Bon Repos

Highlight • Climb

This tour is very nice and varied.
A little technical at the Saut du Moine with a big rocky step that you can go around on the right or cross by portage.

Translated by Google •

Tip by

2

6.69 km

Quatre Chemins Signpost

Highlight (Segment) • Rest Area

one more path in the area of course, but here you can get a golf ball on the corner of your head if you're lucky 😬

Translated by Google •

Tip by

3

15.0 km

Crête de Brie

Highlight (Segment) • Trail

the beginning of the track is in rock with fairly high steps, without major difficulties in summer in dry weather, more technical when very wet

Translated by Google •

Tip by

4

19.4 km

This mountain is Chamechaude

Highlight • Other

the path being easy, we raise our noses and admire the Chartreuse.

Translated by Google •

Tip by

5

23.7 km

View of Oisans-Romanche from the Uriage Ridge Towards Brié-et-Angonnes and Herbeys

Highlight • Viewpoint

small, easy path, which offers a very pretty viewpoint

Translated by Google •

Tip by

25.5 km

Viewpoint

Viewpoint

7

32.4 km

Hertzian Tower

Highlight • Monument

B

38.8 km

End point

Train Station

Way Types & Surfaces

Way Types

17.8 km

11.8 km

4.46 km

2.60 km

2.00 km

206 m

Surfaces

14.7 km

12.0 km

7.35 km

4.38 km

290 m

< 100 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 (710 m)

Lowest point (260 m)

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Weather

Powered by Foreca

Tuesday 28 July

36°C

18°C

0 %

Additional weather tips

Max wind speed: 6.0 km/h

to get more detailed weather forecasts along your route

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