The Marocche di Dro provides important information on how glaciers have shaped the local landscape. The detritus which got accumulated after a number of landslides had taken place during the Glacial Era, is now an area of rocky hills 200-250 m high. Plants and wildlife of the area are characterized by a lunar landscape and dry features. It is exactly for their uniqueness, that the Marocche have been included amongst the province's biotopes. Few animals inhabit its sparse vegetation, since there is little food in the area. Nonetheless, reptiles such as green and wall lizards, mammals such as foxes and squirrels, and birds such as crag martins can all be seen here. Plant growth in the area is influenced by the harsh environmental conditions, which sometimes give rise to natural bonsais - that is, unique plants with very short branches and trunks.