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Bike touring routes & trails

Auvergne Rhône Alpes

Gorges of the Guiers Mort – Col de Porte (1326 m) loop from Moirans

Bike touring routes & trails

Auvergne Rhône Alpes

Gorges of the Guiers Mort – Col de Porte (1326 m) loop from Moirans

Hard

4.0

(1)

108

riders

Gorges of the Guiers Mort – Col de Porte (1326 m) loop from Moirans

05:37

75.0km

1,600m

Cycling

Hard bike 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: August 14, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 28.8 km for 109 m

Waypoints

A

Start point

Train Station

7.37 km

Col de la Croix Bayard

Mountain Pass

2

12.1 km

Gorges du Crossey

Highlight • Gorge

Magnificent gorges between the Massif de la Chartreuse and Voiron, contains a climbing spot!

Translated by Google •

Tip by

17.7 km

Espace naturel sensible des tourbières de l'Herrétang

Nature Reserve

4

18.7 km

Herrétang Peat Bogs Sensitive Natural Area

Highlight • Natural

be sure to take a look, the walk through the nature reserve is very worthwhile

Translated by Google •

Tip by

5

20.4 km

via chartreuse

Highlight • Cycleway

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

Showing Translation

Tip by

6

23.0 km

Saint-Laurent-du-Pont Town Center

Highlight • Settlement

St Laurens du Pont is definitely worth a visit, with nice little shops and cafes

Translated by Google •

Tip by

7

28.2 km

Gorges of the Guiers Mort

Highlight (Segment) • Other

Particularly beautiful section of the road through the gorge

Translated by Google •

Tip by

8

41.2 km

Col de Porte (1326 m)

Highlight • Mountain Pass

The Col de Porte de Grenoble is 15 kilometers long with a total elevation gain of 1088 meters. The average slope is 7.2% with maximum slopes of 14.9%.

Translated by Google •

Tip by

43.7 km

Col de Palaquit

Mountain Pass

10

47.3 km

View of the Écoutoux Massif

Highlight • Viewpoint

The climb to Sarcenas from the Col de Clemencere towards the Col de Porte. Great view of Chartreuse, on a quiet, car-free road. The blocked road area passes without worries by bike.

Translated by Google •

Tip by

B

75.0 km

End point

Train Station

Way Types & Surfaces

Way Types

50.4 km

12.6 km

4.05 km

3.45 km

2.36 km

2.18 km

< 100 m

Surfaces

64.6 km

4.68 km

3.64 km

1.44 km

675 m

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Elevation

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

Highest point (1,320 m)

Lowest point (190 m)

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Weather

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Today

Sunday 11 October

18°C

4°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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