The Ichi River is a river which flows through the southwest of Hyōgo Prefecture, Japan. The Ibo, Kako, Ichi, Yumesaki, and Chikusa rivers are collectively referred to as the Harima Gokawa, the five ma
Rivers in Japan are classified according to criteria set by the River Act, which was introduced in 1967. Rivers are classified by the Ministry of Land, Infrastructure, Transport and Tourism.
Shinano River, the longest river in Japan, designated as Class A
The Nanakita River, a Class B river in Miyagi Prefecture