Oda Miyama Valley [Ehime, Japan]EhimeTwitterFacebookHatena BookmarkPocketLINECopy 2023.01.26The Odamiyama Valley is one of the headwaters of the Niyodo River system.It is located within the Shikoku Karst area of Ehime Prefectural Natural Park.Table of contentsMAPVIDEOMAPVIDEO