The Forest of the Roudons
This hike allows you to discover the colossal works done by men to curb land erosion in mountain areas.
While this hike takes you to the largest alder forest in Europe, it first and foremost cristallises men’s fight against erosion, with embankments and dams built to protect against flooding. It also crosses a forest with various tree species (larch, pine trees and spruces), the result of a sustained effort over a number of years by forestry workers to retain the soil since the end of the 19th century. From Col d’Ornon , follow the signposts Cabanes des Roudons , via Entrée du Col, Le Vernay, Bois du Vernay, Les Palles, La Digue des Palles and Les Roudons . At Les Roudons , you have the option to go all the way to the cabin (please respect the place), or take the return path by following Les Adreys, Le Crozet, Côte Plane . Then follow Col d’Ornon , via Les Siauds, Les Suffets, Le Pied du Vernay, Le Vernay
and Entrée du Col .
Route details
Pets welcome
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Car park,
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Free car park
Opening
From 01/04 to 31/10 daily.
Subject to favorable snow and weather conditions.
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Latitude : 45.008564
Longitude : 5.96716
Height : 1370
Route D526
38740 Chantelouve
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Information updated on 10/03/2026
by Matheysine Tourisme
