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Routes
Mountain biking trails
France
Auvergne Rhône Alpes
Grenoble
Saint-Joseph-De-Rivière

Canal de l'Herretang – Old Saint-Martin Bridge loop from Saint-Joseph-de-Rivière

Routes
Mountain biking trails
France
Auvergne Rhône Alpes
Grenoble
Saint-Joseph-De-Rivière

Canal de l'Herretang – Old Saint-Martin Bridge loop from Saint-Joseph-de-Rivière

Easy

4.4

(10)

31

riders

Canal de l'Herretang – Old Saint-Martin Bridge loop from Saint-Joseph-de-Rivière

01:54

31.2km

160m

Mountain biking

Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: May 13, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional de Chartreuse

Espace naturel sensible des tourbières de l'Herrétang

Waypoints

A

Start point

Bus stop

Get Directions

1

2.84 km

Herretang Canal and Herretang Peat Bogs

Highlight • Trail

Very peaceful walk on the Via Chartreuse from the gorges of Crossey to Entre-2-Guiers. I saw 1 passage under 30-40cm of water in June 2024 during the heavy rain episodes

Translated by Google •

Tip by

2

3.58 km

Herrétang Peatlands Observatory

Highlight • Viewpoint

A must see, break on Via Chartreuse.

Translated by Google •

Tip by

3

5.40 km

Canal de l'Herretang

Highlight • Cycleway

Easy along the canal, pretty greenway at the foot of the Chartreuse

Translated by Google •

Tip by

4

8.24 km

Pont le l'herretang

Highlight • Other

Nice recent bridge which makes things much easier, even if the herrétang is only a small narrow and shallow channel,

Translated by Google •

Tip by

5

16.1 km

Gorges of the Guiers Vif

Highlight • Other

Magnificent gorges to visit

Translated by Google •

Tip by

6

16.2 km

Old Saint-Martin Bridge

Highlight • Bridge

Splendid gorges of Guiers Vif, to explore if you pass in the area! You can cross them thanks to a very nice little bridge. Nice discovery!

Translated by Google •

Tip by

B

31.2 km

End point

Bus stop

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Way Types & Surfaces

Way Types

13.1 km

12.3 km

3.46 km

1.88 km

401 m

< 100 m

Surfaces

9.42 km

9.08 km

6.29 km

5.98 km

463 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 (450 m)

Lowest point (380 m)

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Weather

Powered by Foreca

Wednesday 20 May

25°C

7°C

0 %

Additional weather tips

Max wind speed: 10.0 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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