In the San Grato valley

The itinerary starts from Rognettaz Desot hamlet, along the road that from Bonne reaches Surrier in the higher part of Valgrisenche at the end of the dam’s lake.
The gravel road starts just before the point where the municipal road begins to go downwill. The itinerary reaches then Grand’Alpe hamlet and continues in the long San Grato valley. You’ll see the typical long pasture houses of Tramouail and later you’ll arrive to the fork for San Grato lake and Col du Mont.