Nōbi Plain
Ōgaki is located in the northwest area of the Nōbi Plain in Gifu Prefecture and is known as being the most centrally-located city in Japan. As a result of its 2006 merger with the town of Kamiishizu (from Yōrō District), and the town of Sunomata (from Anpachi District), the city consists of three disconnected regions, with Sunomata in the east, the original Ōgaki in the center, and Kamiishizu in the southwest.