Altitude: 2,730 m
Location: Col de Viou
Sleeping places: 14
Open: always open
Difficulty: E
Trail sign: 105
Ascent: 3h from Blavy – 5h from Prailles
Coordinates UTM-WGS84: EAST 373198
Coordinates UTM-WGS84: NORTH 5072939

The bivouac, inaugurated on 16th July 2005, was realized by the Alpini of Roisan, Saint-Christophe and Valpelline with the contribution of Aosta Valley and the municipalities of Roisan, Saint-Christophe and Valpelline.

Access from Blavy/Roisan:
When you get to Blavy, in the municipality of Roisan, take route 105, which intersects the private road for Alp Viou several times, and takes you to the alp and to Tsa de Viou. From here, continue along the same trail to reach Col de Viou.
It will only take you a few minutes to reach the bivouac from the pass with a slight upward climb northwards

Access from Prailles/Valpelline:
In the square in Valpelline take the road that runs along the cemetery and that goes under the hydroelectric power station, and reaches the bridge over the Buthier. Cross the stream and take itinerary 5 as far as Ronchéaz. After the residential area, go up towards Alpe Planes. Take the dirt road that you meet just before Alpe Planes. Leave this dirt road when you come to a sharp bend just after the houses. Cross the stream and go up to Alpe Verney, Alpe Arpisson and Porillon-Alpe Neuve, occasionally crossing over the road. From here, continue along the road until you come to Fouillou. Keep on to the right along itinerary 105, on the plateau near a waterfall (sometimes dry), cclimb up the slope that leads onto Lac d’Arpisson and then to the mountain pass. The bivouac is located on the right before the pass.

Equipment: blankets, gas stove.