The is a river in the Kantō region
. It is in length (the second longest in Japan after the Shinano
) and has a drainage area of (largest in Japan). It is nicknamed ; Bandō
is an obsolete alias of Kanto, and Tarō
is a popular given name for the eldest son).
It is regarded as one of the "Three Greatest Rivers" of Japan (the other two are the Yoshino
and the Chikugo
The source of the river is Mount Ōminakami (大水上山), which straddles the border between Gunma
Prefectures. It gathers tributaries and pours into the Pacific Ocean
city in Chiba Prefecture
. The Edo River
branches away from the river and flows into Tokyo Bay
Major tributaries of the river include the Agatsuma
, and Kokai
The river was once known for its uncontrollable nature, and its route changed whenever floods occurred. It is hard to trace the ancient route of the river.
The river originally flowed into Tokyo Bay, and tributaries like the Watarase
had independent river systems. For the sake of water transportation and flood control, extensive construction began in the 17th century, when the Kanto region became the political center of Japan. The present route of the river was determined in the mass during the Meiji period
. Its vast watershed is thus largely artificial.
The river was important transport until the advent of the railway
in the 19th century. It carried not... Read More