The Nature Reserve is situated at the eastern edge of Alpi Orobie.
It is very interesting from a geological point of view, since it is rich in sedimentary Triassic formations mainly consisting of clayey-marly deposits which can be easily eroded and which give birth to rounded shapes and not very steep slopes. For short stretches it is also rich in less degradable calcareous-marly deposits outcropping in the steepest areas. The vegetation of the Nature Reserve is characterized by three main parts: woodlands, bushes, and grasslands.