Piatto
Piatto is a municipality with 543 inhabitants (as at 31 December 2012) in the Italian province of Biella (BI ), Region Piedmont.
The neighboring municipalities are Bioglio, Callabiana, Camandona, Mosso, Quaregna, Ternengo, Valdengo Vallanzengo, Valle San Nicolao and Veglio.
The municipality covers an area of 3 km ².