Val d'Hérens, 3 bisses loop

The Ernaya bisse dates from the 14th century, that of Hérémence from 1440 and the route of the Bisse d'Euseigne was modified in 1963 following a landslide. The bisses of Hérémence and Ernaya are abandoned but the route is perfectly maintained. These 3 bisses can be browsed individually, this website offers to browse in a loop.


Total length :  about 15 km

Altitude : between 1'200 and 1'600 meters above sea level

Route time : about 5 hours

Location : Val d'Hérens on the left bank of the Rhône. Departure from Mâche after Hérémence, towards the Dixence dam.

Difficulty : no particular difficulty

Ordinance Survey map 1 : 50'000  no. 273 Montana

Best period : May to October