Parco del Serio

The area of Cologno al Serio, situated at about 10 km in the south of Bergamo, is characterized by an interesting landscape thanks to the presence of a great number of active resurgences within a countryside still rich in fields, edges, and tree rows.
The spontaneous outcrop of underground fresh waters can take place along lines known as resurgence lines, given to the presence of impermeable strata of clay.
The progressive increase in the clayey matrix, the granulometric reduction in inert elements, as well as the reduction of the altimetry, hinder the downflow of the underground waters which tend to come to the surface and give origin to the resurgences phenomenon. This natural phenomenon has been exploited by man during the centuries with irrigation purposes and to create water meadows.
On the contrary, the so-called "fontanili" are semi-natural structures dug by man in areas where the water outcrops originating a head and a consequent pole used to canalize water. Today these areas are interesting for the naturalistic importance the resurgences have acquired in time thanks to the rich vegetation surrounding the heads and the banks of the poles.