From the hut on the left side of the stream. Leave the fork to the Colle della Rossa on the right, at 2844m, turn on the right along narrow hairpins leading to the shaped basins keeping the rests of the Rossa Glacier. From here, an oblique canal is visible on the left and it goes up to the path leading to the Colle della Nera, 3491m.
The Grivola is clearly visible from the pass. Then, across the flat Trajo Glacier south-west, paying attention to the crevasses, to the rift at the foot of the wall's middle. Here, two canals are visible: choose the left one characterized by steep rocks but with easy holds, staying in the sideboard and not in the centre. At the half of this canal, go across to the right as far as the sideboard of the following canal, up to a shoulder of the east-north-east crest. From here, along the ridge and easily to the top.