The , is a

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

Saitama Prefecture is a landlocked prefecture of Japan located in the Kantō region of Honshu. Saitama Prefecture has a population of 7,338,536 (1 January 2020) and has a geographic area of 3,797 km2 (1,466 sq mi). Saitama Prefecture borders Tochigi Prefecture ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

. It is long and has a watershed of . The river rises from Mount Ōmochi in Hannō, Saitama and flows to the

Arakawa River or Ara River may refer to: * Arakawa River (Kanto) or Ara River may refer to: * Arakawa River (Kanto), which flows from Saitama Prefecture and through Tokyo to Tokyo Bay * Arakawa River (Uetsu), which flows from Yamagata Prefecture and throu ...

Kawagoe, Saitama is a city in Saitama Prefecture, Japan. , the city had an estimated population of 353,214 in 162,210 households and a population density of 3200 persons per km². The total area of the city is . The city is known locally as after the old name ...

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Rivers of Saitama Prefecture Rivers of Japan {{Japan-river-stub