The Soana is a small torrent of the Province of Turin, Piedmont in north-west Italy, draining a basin of some . Its headwaters are above Pianprato, in Valprato Soana, where a number of smaller torrents converge. It is the principal tributary of the Orco, which it joins at Pont Canavese.
References
External links http://www.fiumi.com/acque/index.php?id_g=3024 http://www.okadventure.it/soana.htm Bacino idrografico del Torrente Orco: analisi integrata evento-fenomeno-danno