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Mont-Blanc 90k, Vertical KM, Mont-Blanc 23k, Mont-Blanc 10k and Mont Blanc 42k.
Friday June 25th, Saturday June 26th and Sunday June 27th 2021.
Rendez-vous in Chamonix Mont Blanc for a weekend entirely dedicated to running.
Starting the race together the participants will share a passion for nature and the mountains, and for challenges and enjoyment.