Reliefs characterized by a calcareous-silicon-marly sequence of the Meso-Cenozoic mainly consisting of white and red splinters from the late Cretaceous-early Eocene. Species-rich grasslands with showy flowerings and Hop-Hornbeam woodlands. Presence of a deep canyon dug in the calcareous rocks by the river Salinello, between the Fiori Mountain and Campli. Garrigues with Satureja montana. Presence of a cave, which is a religious site.