

A bit of a physical challenge with the reward of visiting the Esseillon Forts.
A loop itinerary taking you down to the Arc riverbank on a singletrack path with a few steep sections. You'll then climb up to Aussois via the Esseillon Barrier, AKA the Esseillon Forts.
After following the River Arc on a pleasant track, things get a little trickier on a narrow path with a few steep sections. Rest assured, this is only for a short distance, before another, much gentler track takes you back to Aussois.
The Esseillon Barrier is a succession of five fortifications.
Built during the 19th century on a rocky sill closing off the upper Arc valley (Maurienne Valley) upstream from Modane, the purpose of these fortifications was to protect the Cisalpine area of the kingdom of Sardinia from French invasion. It comprises four forts and a redoubt which bear the names of their contemporaneous members of the House of Savoie. Two of them are listed historical monuments.
Departs from: Resort of Aussois
From 01/05 to 01/11.
Subject to favorable snow and weather conditions.
Communauté de communes Haute Maurienne Vanoise - 01/09/2025
www.cchautemaurienne.com
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Forest location
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Phone : 04 79 05 99 06
Email : info@hautemaurienne.com
Website :
https://www.haute-maurienne-vanoise.com
http://www.cchautemaurienne.com/jy-vais-en
Ground
The start of the course is at the Base de Loisirs de la Buidonnière in Aussois.
I'll get there by bus: Line S52 - Longecôte stop (bus equipped with a bike trailer depending on day and schedule).
By car: park in the parking lot at the Base de Loisirs.
Topo guides references :
Haute Maurienne Vanoise mountain bike map and booklet sold in Tourist Offices.
As hazards may occur at any time on the routes, the GPX tracks provided are not contractual. They are provided for information only. Riders use them at their own risk, depending on their level of technological proficiency and their understanding of the terrain.
Yes. Dogs on leashes are not forbidden on this trail, but it is not recommended for mountain biking.