The Tōhoku region (東北地方, Tōhoku-chihō; IPA: [toːhokɯ̥ tɕiꜜhoː]), Northeast region, Ōu region (奥羽地方, Ōu-chihō), or Northeast Japan (東北日本, Tōhoku Nihon) consists of the northeastern portion of Honshu, the largest island of Japan. This traditional region consists of six prefectures (ken): Akita, Aomori, Fukushima, Iwate, Miyagi, and Yamagata.
Tōhoku retains a reputation as a remote, scenic region with a harsh climate. In the 20th century, tourism became a major industry in the Tōhoku region.
Dewa Mountains (Japanese: 出羽山地) is a mountain range that runs north and south on the west side of the Tohoku region of Japan. The mountain range spans Aomori, Akita, and Yamagata prefectures. The Dewa Mountains are split into several sub-ranges by the Yoneshiro River, the Omono River and the Mogami River. These sub-ranges include the Shirakami Mountains, the Tahei Mountains, The Choki Mountains, and the Chotake Mountains.The highest peak of the mountain range is Mount Chokai (2,236m).