Pietra di Bismantova
Geological formation in the Reggiano Apennines, in Italy From Wikipedia, the free encyclopedia
The Pietra di Bismantova (literally Stone of Bismantova) is a geological formation (monadnock or inselberg) in the Reggiano Apennines, in the comune of Castelnovo ne' Monti, province of Reggio Emilia, Northern Italy, c. 45 kilometres (28 mi) from Reggio Emilia.[1] It has the shape of a narrow, quasi-cylindrical plateau (measuring 1 km x 240 m) whose steep walls rise 300 metres (980 ft) as an isolated spur from the nearby hills. The top has an elevation of 1,047 metres (3,435 ft) above sea level. It is included in the National Park of the Appennino Tosco-Emiliano.
The spur is composed of yellowish calcarenite over a marl basement, all formed in the Miocene as a sea bottom. It includes fossils belonging to a tropical environment. It is surrounded by woods, mostly of hazel trees (Corylus avellana).
The Pietra di Bismantova is mentioned by Dante Alighieri in his Divine Comedy (Purgatory, IV, 25-30).[2][3]
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