| 1．Kuma River (Japan) |
| 32°30′00″N 130°34′00″E / 32.5°N 130.5666667°E / 32.5; 130.5666667 The Kuma River (球磨川, Kuma-gawa) is a river in Kumamoto Prefecture, central Western part of Kyūshū, Japan. It is sometimes referred as Kumagawa River. It is the longest river in Kyushu, with the length of 115 km long and has a drainage area of 1,880 km2 (730 sq mi). The river's estuary was designated part of Japan's 500 Important Wetlands.[1] |
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| 2．Kikuchi River |
| The Kikuchi River (菊池川, Kikuchi-gawa) flows through the northern part of Kumamoto Prefecture, Kyūshū, Japan. The source of the river is Fukaba, Aso city near Mt. Aso at the height of 1041 metres[1] and flows west through the Kikuchi Valley. It turns south near Kikusui and empties into the Shimabara Bay in the Ariake sea. Land reclamation is taking place at its mouth.[2] |
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| 3．Chikugo River |
| The Chikugo River (筑後川, Chikugo-gawa) flows through Kumamoto, Ōita, Fukuoka and Saga prefectures in Japan. With a total length of 143 kilometres (89 mi), it is the longest river on Kyūshū. It flows from Mount Aso and empties into the Ariake Sea. It is also nicknamed "Tsukushi Jirō". 33°09′N 130°21′E / 33.15°N 130.35°E / 33.15; 130.35 |
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| 4．Shirakawa River (Kumamoto) |
| The Shirakawa river (Japanese: 白川) is a first-class river that runs down from Mount Aso through Kumamoto.[1] In the past the Shirakawa River has overflowed and led to severe flooding such as during the 1953 North Kyushu flood. 32°46′51″N 130°36′13″E / 32.7807°N 130.6035°E / 32.7807; 130.6035 |
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