Nōbi Plain
Kaizu is located in the extreme southwest corner of Gifu Prefecture. Levees are the most visible feature surrounding the city. To the west of the city is the border of Gifu and Mie prefectures, where the Yōrō Mountains run from north-to-south and the three major rivers of the Nōbi Plain (the Ibi, Nagara, and Kiso rivers) merge. The Tsuya, Ōgure, and Ōe rivers also flow through the city.