The race changes itenanery from time to time but it is similar every year starting from Chamonix, going trough Lavancher, Argentiere, Vallorcine, then back to the Col des Montets, Flegere and finishing at the Plan Praz, a beautiful trail that traversses all the Chamonix Mont Blanc valley.
It is a semi autonomous race that provides 4 refreshment stops along the itinerary, it is advised to take your own suplies though since it can get very hot at the end of June and you might need refreshment along the trail between stops.
If you want to visit the organisation website, please contact directly the Club des Sports de Chamonix.
Visit the official website of the Mont Blanc Marathon & Cross du Mont Blanc, Vertical Km and 10km of Chamonix www.montblancmarathon.net.
The "Club des Sports de Chamonix" needs volunteers for the days of the race, to help the organisers in differents tasks and support the racers.
If you would like to help please contact the club at 04 50 53 11 57 or by email at firstname.lastname@example.org.