The Reno river has a length of 211 km (131 mi), and a drainage basin with an area of approximately 4,628 km2 (1,787 sq mi).[1]
Course
The Reno river starts in the Apennines to the northwest of the city of Pistoia, Pistoia province (Tuscany). The Reno is formed by the confluence, at about 745 m (2,444 ft) above sea level, of two streams: Reno di Prunetta (with its source at an altitude of 1,020 metres [3,350 ft]) and the Reno di Campolungo.
Its upper course, going to the west, marks the border between Tuscany and Emilia-Romagna. In this part, there are several artificialreservoirs whose dams are used for hydro-electric energy production.
In Sant'Agostino, the river turns to the southwest and passes west of Bologna, at Casalecchio di Reno.
In its lower course the Reno receives the water of numerous streams, some of which are seasonal (they have water only when it rains)