Description of the route

Without going as far as Gressoney-Saint-Jean, when you get to the hamlet of Valdobbia, turn left and continue towards Savoia castle. Take the road that leads to the cabins of Cialvrina, leaving the care where the road meets the ski slopes of Weissmatten.
The path towards Col Ranzola starts on the right.
The path winds up into the woods and heads right to reach the upper slopes. From here, after a series of pastures, the hill, where an old military shelter stands, is easy to reach.