Tour du Mont Blanc

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Mt Blanc Massif from the French side of the Tour du Mont Blanc
The official TMB sign
Mont Blanc from the TMB

The Tour du Mont Blanc or TMB is one of the most popular long distance walks in Europe. It circles the Mont Blanc Massif covering a distance of roughly 170 km with 10 km of ascent/descent and passes through parts of Switzerland, Italy and France.

It is considered one of the classic long distance walking trails. The circular route is normally walked in an anti-clockwise direction in 11[1] days. It is also the route of an annual mountain marathon in which the winner normally covers the entire distance in less than 24 hours. Usual start points are Les Houches in the Chamonix valley or Les Contamines in the Montjoie valley (in France), Courmayeur from the Italian side, and either Champex or a point near Martigny in Switzerland. The route passes through seven valleys around the Mont-Blanc massif, an anti-clockwise start in Chamonix would lead through the Chamonix (or Arve) valley, then Montjoie, Vallee des Glaciers, Italian Val Veni, & Val Ferret, Swiss Val Ferret, and either the Arpette or Trient valley in Switzerland, dependent on route taken.

The ‘official’ route has changed over the course of the years and many alternatives, or ‘Variantes’, exist to the standard route. Some of these take the intrepid walker onto paths requiring greater fitness, awareness and skill. Others provide conveniently less demanding options, which are often quicker than the accepted route but provide lesser viewpoints onto the mountain ranges. For a part of the way, between the summit of Brevent and the Col de la Croix du Bonhomme, the route coincides with the European long distance footpath GR5 as it makes its way from the North Sea to the Mediterranean Sea. A link can also be made with the walkers' Haute Route from Chamonix to Zermatt in the Swiss Alps.

Plentiful accommodations exist along the entire route, allowing the route to be broken into segments to suit virtually any fit person. The accommodation takes a variety of forms, from separate bedrooms to large mixed sex dormitories. One can normally obtain cooked meals at many of these places. With a start at Les Houches one might expect overnight stops at Les Contamines, Col de la Croix du Bonhomme refuge or Les Chapieux (depending on variant route taken), Elisabetta Soldini refuge, Courmayeur, Elena refuge, Champex, Trient village, Argentiere, La Flegere refuge and finally back to Les Houches. The sheer abundance of accommodation makes for very flexible route-planning and many options exist besides these. Despite this wealth of choice the tremendous popularity of the trail can lead to problems finding accommodations, especially towards the end of the day. It is, however, possible to book accommodation in advance.

The highest points on any variant of the trail are the Col des Fours in France and the Fenetre d'Arpette in Switzerland, both at an altitude of 2,665 m (8,743 ft). Although, for most, this is not high enough to cause altitude sickness, the trail nevertheless represents a tough physical proposition. Experience of walking in mountain country should be considered vital. In addition the weather can change very rapidly indeed and one should always be suitably equipped for the challenge.

It passes through (or near) the towns of Martigny, Courmayeur and Chamonix.


Measured with a GPS device and a barometer-clock.

Leg# Start Destination Kilometer Hours Ascent Meter Descent Meter
1 Les Houches Refuge du Truc 12.8 km 4:59 1536 m 775 m
2 Refuge du Truc La Balme 11.4 km 3:10 544 m 601 m
3 La Balme Les Mottets 15.9 km 4:23 1136 m 1038 m
4 Col de Checroui Courmayeur 5.78 km 1:20 88 m 796 m
5 Courmayeur Rifugio Bertone 4.12 km 1:47 727 m 0 m
6 Rifugio Bertone Rifugio Elena 19.5 km 5:06 1163 m 1086 m
7 Rifugio Elena Champex 28.2 km 7:44 1045 m 1656 m
8 Champex Le Peuty 13.6 km 6:01 1213 m 1274 m
9 Le Peuty Tre-le-Champ 15.7 km 5:25 1219 m 1108 m
10 Tre-le-Champ Refuge Flegere 7.99 km 3:18 855 m 413 m
11 Refuge Flegere Les Houches 19.6 km 6:25 889 m 1773 m
Total: 154.59 km 49h38m 11,603 m 11,895 m


The route of the Tour du Mont Blanc is used for an annual ultramarathon event called the Ultra-Trail du Mont-Blanc. The winning time is usually around 20 hours to complete the entire circuit.


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