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Routes
Mountain hikes & routes
France
Auvergne Rhône Alpes
Grenoble
Saint-Pierre-De-Chartreuse

Grand Som – Ruchère Pass loop from Monastère de la Grande-Chartreuse

Routes
Mountain hikes & routes
France
Auvergne Rhône Alpes
Grenoble
Saint-Pierre-De-Chartreuse

Grand Som – Ruchère Pass loop from Monastère de la Grande-Chartreuse

Hard

5.0

(2)

11

hikers

Grand Som – Ruchère Pass loop from Monastère de la Grande-Chartreuse

06:58

14.9km

1,140m

Mountaineering

Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: August 3, 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 4.68 km for 230 m

After 5.47 km for 627 m

After 9.09 km for 32 m

Waypoints

A

Start point

Parking

Get Directions

555 m

Viewpoint

Viewpoint

2

4.35 km

La Suifière

Highlight • Summit

3

5.95 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

4

7.82 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

8.90 km

Pas du Loup (1560 m)

Highlight • Mountain Pass

Be careful, if in summer it is a fairly easy passage, in winter, as the surrounding slopes are steep, it is more prudent to have crampons

Translated by Google •

Tip by

6

9.37 km

Sous le Petit Som (1530m)

Highlight • Other

7

9.98 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

8

13.0 km

Grande Chartreuse Monastery

Highlight • Historical Site

La Grande Chartreuse, the Great Charterhouse, is the mother monastery of the Carthusian Order. It is an impressive and unique facility. It cannot be visited, but you can walk around …

Translated by Google •

Tip by

B

14.9 km

End point

Parking

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Way Types & Surfaces

Way Types

6.93 km

3.13 km

3.03 km

1.57 km

244 m

Surfaces

5.74 km

4.36 km

2.57 km

2.15 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.

Highest point (1,970 m)

Lowest point (850 m)

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Weather

Powered by Foreca

Saturday 10 October

12°C

5°C

0 %

Additional weather tips

Max wind speed: 7.0 km/h

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