Agatsuma River

River in Japan

36°29′20″N 138°23′53″E / 36.489°N 138.398°E / 36.489; 138.398 • elevation2,362 m (7,749 ft) MouthTone River

• location

Shibukawa, Gunma

• coordinates

36°30′00″N 139°00′58″E / 36.5°N 139.016083°E / 36.5; 139.016083

• elevation

166 m (545 ft)Length76.22 km (47.36 mi)Basin size1,366 km² (527 sq mi)

The Agatsuma River (吾妻川, Agatsuma-gawa) is a major river in the northern Kantō region of Japan. It is 76.22 kilometres (47.36 mi) in length and has a basin area of 1,366 square kilometres (527 sq mi). Located entirely within Gunma Prefecture, it is one of the prefecture's major rivers. It is also a major tributary of the Tone River. The river is an important source of hydroelectric power, and 17 power plants are located on its banks.^[1]

Geography

The source of the Agatsuma River is Torii Pass (1,362 metres (4,469 ft) in altitude), on the border of Gunma and Nagano Prefectures. It gathers tributaries from Mount Asama and Mount Kusatsu-Shirane and flows into the Tone River in Shibukawa city. The Agatsuma River drains most of northwest Gunma Prefecture.

Transportation

The East Japan Railway Company's Agatsuma Line (a single track line) runs along the river from Shibukawa Station in the east to the terminus at Omae Station in the west. Roughly divided into three sections, the river can be travelled by road using three National Highways: National Route 353 (in the east), National Route 145 (in the middle), and National Route 144 (in the west).

References

^ "吾妻川流域のなりたち | 利根川水系砂防事務所 | 国土交通省　関東地方整備局". www.ktr.mlit.go.jp. Retrieved 2024-03-05.

River systems and rivers of Japan

Rivers of Hokkaido

Sea of Japan	Ishikari River Chitose River Toyohira River Makomanai River Anano River Yūbari River Koetoi River Rumoi River Shiribeshi-Toshibetsu River Shiribetsu River Teshio River Zenibako River
Sea of Okhotsk	Abashiri River Shibetsu River Shokotsu River Tokoro River Yūbetsu River
Pacific Ocean	Akan River Kushiro River Mitsuishi River Mu River Niikappu River Saru River Shizunai River Tokachi River
Rivers of Hokkaido on Commons

Rivers of Honshu

Tōhoku region	Abukuma River Arakawa River Iwaki River Kitakami River Komagome River Koyoshi River Mabechi River Mogami River Natori River Ōhata River Oirase River Omono River Takase River Yoneshiro River
Kantō region	Arakawa River Edo River Fuji River Kanda River Kuji River Naka River Sagami River Sumida River Tama River Tone River Tsurumi River
Chūbu region	Agano River Shinano River Seki River Hime River Kurobe River Jōganji River Jinzū River Shō River Oyabe River Tedori River Kuzuryū River Fuji River Abe River Ōi River Sakawa River Tenryū River Toyo River Yahagi River Shōnai River Kiso Three Rivers Kiso River Nagara River Ibi River Kushida River Miya River Kita River Minami River
Kansai region	Choshi River Ibo River Kako River Kinokawa River Kumano River Kuzuryu River Maruyama River Muko River Yamato River Yodo River Yasu River Katsura River Kamo River Kizu River Dōton River Yura River
Chūgoku region	Asahi River Ashida River Gōnokawa River Hino River Hii River Ōta River Oze River Saba River Sendai River Takahashi River Takatsu River Tenjin River Yoshii River

Rivers of Shikoku

Aibiki River
Shimanto River
Shinmachi River
- Suketō River
- Tamiya River
- Sako River
- Sumiyoshijima River
Yoshino River
- Dōzan River

Rivers of Kyushu

Kyushu	Arie River Chikugo River Kikuchi River Kuma River Mimi River Ōno River Ōyodo River
Yaeyama Islands	Kokuba River Nakama River Urauchi River