The Forest of the Roudons



This hike allows you to discover the colossal works done by men to curb land erosion in mountain areas.

About : The Forest of the Roudons

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 .

En bref

3 h 15

J+ : 490 m

8.1 km

Level bue - Medium

Map and GPX marking

The Forest of the Roudons

Getting There


  • Car park
  • Free car park


  • Pets welcome


From 01/04 to 31/10.

Subject to favorable snow and weather conditions.


Free access.

Pets welcome

In this protected area, dogs must be kept on a leash.

Potential presence of herds and guard dogs.

This service provider also offers

Gîte Auberge Le Chantelouve

Gîte Auberge Le Chantelouve