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France

Auvergne Rhône Alpes

Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble

Routes

France

Auvergne Rhône Alpes

Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble

Hard

4.0

(1)

riders

Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble

04:27

59.6km

1,430m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 22, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 24.8 km for 401 m

Waypoints

Start point

Train Station

Get Directions

10.7 km

Lavoir du Maupas

Cave Entrance

25.2 km

Mortier Tunnel Viewpoint

Highlight • Viewpoint

From the old D218 at the Tunnel du Mortier there is a wonderful view of the Isère valley and the Chartreuse.
More information: de.wikipedia.org/wiki/Vercors#Touristische_Erschlie%C3%9Fung_des_Vercors

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25.8 km

Mortier Tunnel

Highlight • Structure

The Mortier tunnel is a tunnel in France located in Isère, northwest of Grenoble.

On the occasion of the Winter Olympic Games in Grenoble, which took place from February 6 …

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26.1 km

Mortier Tunnel

Highlight • Structure

The road from the Isère Valley to Autrans, which runs through the tunnel (e), was built for the 1968 Grenoble Olympic Games. Cross-country skiing and biathlon competitions were held in …

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27.8 km

Rockfall to climb over

Highlight • Other

Approx. 150 m wide rock fall. The bike can be carried. The area does not invite (despite the great view) to linger.

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32.0 km

Col de Montaud

Mountain Pass

39.0 km

Downhill

Highlight • Other

Very good

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40.1 km

Montaud Summit

Highlight • Other

Quite a slope via Veurey Voroise, a little less via St Quentin

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40.1 km

Chemin des crêtes

Highlight (Segment) • Other

Magnificent bucolic path with stunning views

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41.2 km

Viewpoint

50.2 km

Breathtaking mountain views

Highlight • Summit

The banks of the Drac are ideal for a family outing

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59.6 km

End point

Train Station

Way Types & Surfaces

Way Types

20.8 km

18.0 km

14.9 km

5.03 km

965 m

Surfaces

29.9 km

21.8 km

6.36 km

1.21 km

229 m

213 m

Elevation

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

Highest point (1,410 m)

Lowest point (190 m)

Weather

Wednesday 20 May

28°C

11°C

0 %

Additional weather tips

Max wind speed: 7.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Mortier Tunnel Viewpoint – Montaud Summit loop from Grenoble

Mortier Tunnel Viewpoint

Mortier Tunnel

Mortier Tunnel

Rockfall to climb over

Downhill

Montaud Summit

Chemin des crêtes

Breathtaking mountain views

Nearby routes

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