7 - Le Grand Som on trail

A true challenge in the heart of Chartreuse! Covering 22 km with a positive elevation gain of 1600 m, this trail is reserved for the boldest. Technical and demanding, it’s designed for those who love to take on the mountains. Ready to rise to the challenge?

Discover Trail Route No. 6 in the Chartreuse, a perfect course for those seeking a balanced challenge. This varied route combines enjoyable climbs and descents, with a few technical sections to spice up the adventure. All set in stunning landscapes, offering breathtaking views of the Chartreuse. An ideal trail to immerse yourself in nature while pushing your limits.

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En pratique

  • Non disponible

Publics

  • Level red – hard

Animaux acceptés

  • Non disponible

After descending to the bottom of the station, you'll reach the Porte de l'Enclos (entrance to the Grande Chartreuse domain). You’ll embark on a long ascent of 1000m+ while passing by the Museum and the Monastery Convent (please respect the tranquility of the area!).

After an initial forest section along the chapels of Saint-Bruno and Casalibus (without entering), you’ll cross the first meadows at the Col de la Ruchère before tackling more exposed sections at Petit Som.

Next, you’ll find yourself on the plateau of Habert de Bovinant before reaching the summit of Grand Som. The descent starts with some tricky sections at Racapé, followed by a pleasant sequence of switchbacks from the Col des Aures (optional detour to the col du Cucheron for a view of the Entremont valley).

At the foot of this trail, you’ll make a brief ascent before switching to the slope of La Scia and returning to the base area via a scenic path.

Informations complémentaires

Langues parlées

  • French

Durée moyenne d'une visite groupée

  • 240h

Ouvertures

From 01/05 to 30/11.

Subject to favorable snow and weather conditions.

Périodes

  • Autumn,
  • Summer,
  • Spring

Tarifs

Free access.

S'y rendre

Latitude : 45.341342

Longitude : 5.817326

Chemin de Perquelin
Le Bourg
38380 Saint-Pierre-de-Chartreuse
S'y rendre
Chambéry Grenoble Bourg-d'Oisans Bourgoin-Jallieu Vienne Lyon Valence Gap

Information mise à jour le 12/11/2024
par Chartreuse Tourisme

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