Altitude: 2,958 m
Location: Col d’Estelette
Sleeping places: 4
Open: always open
Difficulty: EE
Trail sign: 13
Ascent: 3h15 from La Visaille
Coordinates UTM-WGS84: EAST 330617
Coordinates UTM-WGS84: NORTH 5071478

The bivouac was inaugurated in 1925 and in 1951 it was dedicated to the memory of Adolfo Hess, an electrical engineer from Turin and a mountaineer, who created the first fixed bivouacs in high mountains. Hess designed the badge of the Italian Academic Alpine Club (CAAI), of which he also became president.

Access:
From the Elisabetta Refuge carry on along the path until the crossroads for Les Pyramides Calcaires.
Take the path on your right that leads to the moraine then cut off sideways towards the river flowing down from the glacier.
After crossing it, head along a grassy slope following the twists and turns in the path until you come to a steep pass with debris on the right.
Go back up it following the path trails until you come to the top and the Colle d’Estellette, where you will find the Bivouac after turning left and passing the last of the rocks.

Equipment: melting water.