Agano River

Overview

The Agano River is a river that rises in Fukushima Prefecture, flows through Niigata Prefecture, and empties into the Sea of Japan. It is the main stream of the Agano River system, designated by the national government as a Class A river system. In Fukushima it is also called the Aga River or the Ōkawa River.

Highlights

• ●A length of about 210 km, ranking tenth among Japan's rivers
• ●A watershed area of roughly 7,710 square kilometers, eighth in Japan
• ●A river system whose lower-course flow is among the largest in Japan
• ●A course spanning the two prefectures of Fukushima and Niigata

History

The source of the river is Mount Arakai on the border of Fukushima and Tochigi prefectures. It flows north, meets the Nippashi River from Lake Inawashiro and the Tadami River in the Aizu Basin, then turns west to empty into the Sea of Japan. The system includes tributaries such as the Arakai River.

Map

37.0438, 139.6466 · Wikidata

Suggested itinerary

1. 1View the riverside scenery along the upper reaches in Fukushima
2. 2Follow the flow where tributaries join in the Aizu Basin
3. 3Trace the middle and lower course as it turns westward
4. 4Visit the river mouth on the Niigata side facing the Sea of Japan

Did you know?

💡 The designated main stream of the Agano system consists of the Class A rivers Agano and Aga.

Nearby spots