The Tiber flows through Emilia-Romagna about and then it gets into Tuscany where flows through Pieve Santo Stefano and Sansepolcro. Between these two localities there is a dam with a large reservoir that is named as Montedoglio Lake (). From here, the river flows through a wide plain ("Val Tiberina") and gets in the Perugia province (Umbria) and flows through the towns of Città di Castello and Umbertide.