Alert
Alerts
8 - Le Charmant Som on trail
IGN cards
Description
On the program for this trail loop: Charmant Som, Pinéa, and the ridges of Mont Fromage.
Discover Trail Route No. 8, a red course in the Chartreuse, designed for experienced runners seeking thrills. This loop circuit features steep climbs and technical descents that will test your endurance. The route begins with an ascent through lush forests, where you can enjoy the coolness of the underbrush. Then, you will reach panoramic ridges offering spectacular views of the surrounding mountains and the valley below. Be cautious of certain technical sections that require good skills in varied terrain. This trail is perfect for runners eager to push their limits while enjoying a pristine natural environment. Get ready for a memorable adventure in the heart of the Chartreuse!
Technical Information
Altimetric profile
Starting point
Points of interest
Date and time
- From 01/05/2026 to 30/11/2026
Additional information
Updated by
Chartreuse Tourisme - 24/09/2025
www.chartreuse-tourisme.com/
Report a problem
Open period
From 01/05 to 30/11.
Subject to favorable snow and weather conditions.
Contact
Phone : 04 76 88 62 08
Email : info@coeurchartreuse-tourisme.com
Website : raidlight-trailexperience.com/fr/parcours/146244
Guidebook with maps/step-by-step
After descending to the bottom of the resort, you will reach the Porte de l’Enclos (entrance to the Grande Chartreuse area) to begin the long ascent of 1000m+ to Charmant Som through the Bois du Grand Logis.
A large part of the climb takes place in the forest before emerging onto rocky slabs (be cautious in poor conditions).
The summit offers a 360° view! At the alpine pasture, where the sheepfold may be an opportunity to grab a drink, you will take the road to the Oratoire d’Orgeval, then follow a ridge path to the foot of the Pinéa (there is an option to continue to the summit).
The descent back to Saint Pierre de Chartreuse passes through the Col de Porte. For the return, head towards Diat, then to the Pont de la Laiterie and the village.
