FATMAP difficulty grade
The route joins the 3 valleys of the river Dranse, forming a symbolic link between these three geographic regions.
Two main uphills will harden the beggining , passing by the top of Catogne (2598m), with a breathtaking view and by the Orny hut (2826m), by a glacier.
La Fouly is roughly in the middle of the route and from there a new adventure starts.
Leading the runners by the famous Col du Grand St Bernard, through several villages and pastures and also up the last 1200m ascent to La Chaux, called "the wall" by runners.