They call them "casoni" and only in the area of Caltrano there had been calculated sixty six of those. The buildings are rustic, with thick stone walls, dotting the slope foothills up to about 800 meters above sea level. They were once the hub of agricultural activities, but today, in most cases, they are abandoned and that's why the municipality has proceeded with their census in the hope of being able to preserve them not only from the construction point of view, but also in their role of overseeing the area.

In this sense, the initiative must be interpreted in conjunction with the province, which has seen the installation of an experimental apple orchard at some huts in Pianezze and Caorso: several hundred varieties of plants of an ancient mountain variety – the red apple, also known as the “pomo gentile” or “pomo de la rosa” – a small and round fruit, with crisp, fragrant, acidic and fresh flesh, resistant to prolonged periods of storage, almost until May.

This fruit has been chosen not only to save a native variety from oblivion, a variety selected over the centuries by the local population, but also to revitalize an environment with tourism potential in the most current view of this activity.