Alpi Apuane distinguish themselves from the near Apennines for their harsh morphology, their deep valleys, and their imposing and very inclined slopes. Apuane are famous for the beauty of their marbles, their deep abysses, and the great cavities of the subsoil characterized by karst phenomena.
The geographical position of the massif, its exposure, and the different nature of the rocks determine the presence of varied and contrasting environments which favor the floral and wildlife richness of the territory.