42 km
9:30 /km
One valley section.
Photo · Ultra-Trail du Mont-BlancUltra-trail, alpine, epic.
Full circuit of the Mont Blanc massif — the trail world's flagship pilgrimage.
Because earned altitude rewrites what you thought the day could hold.
It is not a race, it is a passage. Sleep, eat, breathe, continue.
A physical profile — respect the ascents; let the descents restore the breath.
Warm to hot. Early start, shade-line and salt matter — carry more water than you think you need.
A small, reverent gathering. Head torches in dawn cold, quiet nods rather than fanfare — a race that feels more like a pilgrimage than an event.
Loyal, knowledgeable crowd at trail-heads and villages. Deep silence between — the wind and your breath as company.
Nearly the whole race is a quiet segment. Save the deepest presence for kilometres 36–44 where the land narrows.
Mixed trail · packed earth · occasional rock
Race day is genuine trail terrain with elevation. Wheelchair and stroller access is not viable on the official line — a paved shorter alternative in the host city is suggested under recovery variations.
Three full days off feet. Hot soup, cold streams.


9:30 /km
One valley section.
7:30 /km
River-flat shuffle.
8:30 /km
Full loop, structured sleep.
Soft, restorative · step-free, wheelchair friendly
Only forward · run with the land
Forest-grounded · deeper trails, longer days
Long, open lines · quiet lanes, long horizons
Shared maps · shared GPX engine · shared Soul Signature language. Whichever door you enter, the craft standard is the same.