Provincial nature reserve
The Marocche di Dro are one of the very few biotopes that do not belong to the 'wetlands' typology (ponds, marshes, peat bogs), being, on the contrary, an 'arid zone'.
The term 'marocche' indicates large, loose and chaotically distributed masses of large rock blocks.
The Reserve is also a Special Area of Conservation and is one of the protected areas that make up the Sarca River Park.