Trebbia

The Trebbia (stressed Trèbbia; Latin: Trebia) is a river predominantly of Liguria and Emilia Romagna in northern Italy. It is one of the four main right-bank tributaries of the river Po, the other three being the Tanaro, the Secchia and the Panaro. The 1,150 km2 (440 sq mi) drainage basin is divided between Emilia Romagna (770 km², 300 mi²), Liguria (349 km², 135 mi²) and Lombardy (31 km², 12 mi²). Its principal tributaries are the torrents Aveto and Perino (from the right) and the torrent Boreca (from the left).