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Well-known for its great vertical amplitude, the Chamonix trail network profile offers terrain that can be wide and easy to roll on, steep and technical, narrow and challenging. For the past few years, Chamonix has attracted trail runners from around the world, making it today a leading destination for trail running.


From Servoz to Vallorcine, going through Les Houches, Chamonix and Argentière, 18 trail running circuits have been mapped down.

  • S route from 1 to 2 hours
  • M route from 2 to 4 hours
  • L route for efforts lasting 4 to 8 hours.

A detailed trail running description was published and a specific sign system (numbers and 10 cm wide green strips) was added on trail marking posts.

The classification system refers to a number and a direction. All information and downloadable route descriptions are available on the valley website


Trail running has become a popular topic for the media. Runners should keep in mind that being fit is not all it takes to run safely in the alpine, on screes through boulders and across glaciers. 

Trail running equipment is made for mid mountain terrain and will not stop a person from sliding down or falling through a snow bridge. 

View our trail running yeti video


Les Yetis

LeTrail en montagne
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