Geographical features include the Moncodeno, an extensive natural amphitheater located on the north of the northern Grigna at an altitude of between  and , characterised by the presence of a large number of sinkholes (depressions in the ground) and almost 500 caves, formed by the combined action of the karst and erosion by ice that covered the area during the ice ages.
The Moncodeno is a geographical feature characterized by its extensive natural amphitheater formation, featuring a high concentration of sinkholes and caves, resulting from the interplay of karst and glacial erosion.