From the left, the Mont Gelè and the Morion Group seen from the Rosazza Bivouac, m. 2651, normal italian route to Mont Velan
From Aosta town, take the road that brings to the Gran San Bernardo Pass; a few kilometers after Aosta, turn right, s.s. 27 direction Valpelline, in Valpelline follow Ollomont-Glassier, and park when the road finish. Here (m. 1549) you start finding the indication to Conca di By. Bring the large path and walk up easily till a small church; turn now left, and cross the top of a small dam, following some path trial till a farmer road.
Follow the road that brings to Alpe Porchère Inferiore m. 2094. Continue toward the Tsa de Porchère, m. 2298. After these farm houses, the path follows a water pipe, along the slopes of the Boegno Bas. At this point there are two ways: one of them, follows the Boegno Bas ridge, easy but steep, the other enters in a small valley, left side of the Boegno Bas ridge: at the end, the Rosazza Bivouac, the new built in 2003 at the place of the old Savoie Bivouac. ( m. 2651, level 1105 m, 3 hours)
Leave the bivouac and follow a small path, that enters in the left valley. Look for some path trials, and follow them till the Valsorey Pass; take care, on your left some stone falls are possible.
The path is very steep, and when you are close to the Pass (m. 3107, approx one hour from the bivouac), keep your left, higher respect the Pass. Follow the left ridge for a while, and come down on the Valsorey Glacier; leave the Corni del Velan on your left, and walk up on the steep iced cup.
Normal high mountain equipment: rope, axe, crampons