The park is located in Kamiukiana-gun, and spans the borders of the
municipalities of
Kumakōgen,
Seiyo, and
Uchiko. It runs from the Onogahara grasslands to the Jiyosa Pass, along the borders of Ehime and Kochi prefectures, and includes the Godan and Tengu plateaus. Mountainous grasslands cover the underlying limestone formations. The main peaks in the area are Mt Oda and the Okawa Ridge. == Geology ==