Tone River | |
---|---|
Native name | 利根川 |
Country | Japan |
Basin features | |
Main source | Mount Ōminakami 1,831 m (6,007 ft) |
River mouth |
Pacific Ocean 0 m (0 ft) |
Basin size | 16,840 km2 (6,500 sq mi) |
Physical characteristics | |
Length | 322 km (200 mi) |
Discharge |
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The Tone River (利根川 Tone-gawa?) is a river in the Kantō region of Japan. It is 322 kilometers (200 mi) in length (the second longest in Japan after the Shinano) and has a drainage area of 16,840 square kilometers (6,500 sq mi) (the largest in Japan). It is nicknamed Bandō Tarō (坂東太郎); Bandō is an obsolete alias of the Kantō Region, and Tarō is a popular given name for an oldest son. It is regarded as one of the "Three Greatest Rivers" of Japan, the others being the Yoshino in Shikoku and the Chikugo in Kyūshū.
The source of the Tone River is at Mount Ōminakami (大水上山) (1,831 meters (6,007 ft)) in the Echigo Mountains, which straddle the border between Gunma and Niigata Prefectures in Jōshin'etsu Kōgen National Park. The Tone gathers tributaries and pours into the Pacific Ocean at Cape Inubō, Choshi in Chiba Prefecture.
Major tributaries of the Tone River include the Agatsuma, Watarase, Kinu, Omoi, and the Kokai. The Edo River branches away from the river and flows into Tokyo Bay.