Koyoshi River

Overview

The Koyoshi River is a Class A river that flows through the southern part of Akita Prefecture and empties into the Sea of Japan, forming the main stream of the Koyoshi River system. It originates on Mount Chōkai, and its headstream is also called the Chōkai River. Among the Class A rivers of Akita Prefecture, it has the third largest drainage area, after the Omono River and the Yoneshiro River.

Highlights

• ●A Class A river flowing through southern Akita Prefecture into the Sea of Japan
• ●Rising on Mount Chōkai, with an upper course also called the Chōkai River
• ●The third largest drainage area in the prefecture, after the Omono and Yoneshiro rivers
• ●A river system rising near the border of Akita and Yamagata prefectures

History

The Koyoshi River has long supported life in the southern part of Akita Prefecture, and power is generated along the Chōkai River on its upper course. Its 'river-making for healing' efforts were recognized when it received the Ministry of Land, Infrastructure, Transport and Tourism's Furusato Award (community activity category) for fiscal 2002.

Map

39.3907, 140.0138 · Wikidata

Suggested itinerary

1. 1Look out over the upper reaches of the flow that rises on Mount Chōkai, near the Akita–Yamagata border
2. 2Take in the scenery along the main stream as it runs through Yurihonjō
3. 3Experience the riverside environment shaped by the 'river-making for healing' effort
4. 4Head toward the river mouth to view where it empties into the Sea of Japan

Did you know?

💡 Its 'river-making for healing' effort was recognized with the fiscal 2002 Furusato Award.

Nearby spots