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The Hub, Chamonix will be open from June 15 to September 15, 2025.

Please note, we are fully booked for the UTMB from August 25 to 31, 2025.

Blog

Ibex, chamois, mouflon & deer in the Alps: What just ran by?

Here are a few ways to spot the differences between ibex, chamois, mouflon, and deer in the Alps.

TMB

Tour du Mont-Blanc Trail Running

The Tour du Mont-Blanc (TMB) is our most popular guided and self-guided tour. We offer multiple tour options each trail season.

FIlm Grants

Run the Alps x On Trail Running Film Grant – Call for Applications

Pitch us your idea for a short film with trail running in the Alps at its heart, and you could receive €5,000 to bring your story to life.