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Routes
Hiking trails & Routes
France
Auvergne Rhône Alpes
Grenoble
Saint-Christophe-Sur-Guiers

Ruchère Pass – Grand Som loop from Chartreuse Regional Nature Park

Routes
Hiking trails & Routes
France
Auvergne Rhône Alpes
Grenoble
Saint-Christophe-Sur-Guiers

Ruchère Pass – Grand Som loop from Chartreuse Regional Nature Park

Hard

4.8

(17)

139

hikers

Ruchère Pass – Grand Som loop from Chartreuse Regional Nature Park

06:02

14.5km

970m

Hiking

Hard hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: April 8, 2026

Tips

Includes a segment that may be dangerous

A part of this route comprises technical, difficult, or hazardous terrain. Specialist equipment and prior experience may be required.

After 3.81 km for 32 m

Waypoints

A

Start point

Bus stop

Get Directions

1

2.75 km

Ruchère Pass

Highlight • Mountain Pass

Also worth the climb if you do not continue to the Petit Som or the Grand Som. The view down the valley of Saint-Bruno, with the Charmant Som at the opposite side is pretty good.

Tip by

2

3.77 km

Pas du Loup

Highlight (Segment) • Other

3

4.61 km

Habert de Bovinant

Highlight • Mountain Hut

unguarded cabin

Translated by Google •

Tip by

4

4.88 km

Bovinant Pass

Highlight • Other

A crossroads perched at an altitude of 1,645 meters, you can observe the Col de Léchaud and Col du Frêt as well as Mount Outheran and the Bauges massif in the background.

Translated by Google •

Tip by

5

6.75 km

Grand Som

Highlight • Summit

Culminating at 2,026 meters above sea level, the Grand Som is one of the emblematic peaks of the Chartreuse. Located in the heart of the massif, it offers a variety …

Translated by Google •

Tip by

6

9.50 km

Petit Som

Highlight • Summit

Magnificent summit above the Col de la Ruchère, offering you one of the most beautiful panoramas of the Chartreuse.

Translated by Google •

Tip by

7

9.79 km

Meeting a Patou puppy

Highlight (Segment) • Other

Enjoy it because it will grow quickly

Translated by Google •

Tip by

B

14.5 km

End point

Bus stop

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Way Types & Surfaces

Way Types

5.95 km

4.54 km

2.48 km

1.44 km

< 100 m

Surfaces

7.02 km

5.95 km

1.44 km

< 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.

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Weather

Powered by Foreca

Wednesday 20 May

23°C

8°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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4.7

1,670

La dent de Crolles, the trou du Glaz and the pas de l'Oeil – loop in the Chartreuse Regional Natural Park

04:08h

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