Arakawa River (Kantō) Arakawa River (Kantō) The is a long river that flows through Saitama Prefecture and Tokyo. It originates on Mount Kobushi in Saitama Prefecture, and empties into Tokyo Bay. It has a total catchment area of . The river is one of Tokyo's major sources of tap water, and together with the Tone River, accounts for around 80% of Tokyo's water supply. Attempts to control flooding of the Arakawa River have been made since the area that is now Tokyo became the de facto capital of Japan during the Edo period. Following a major flood in 1910 that damaged a large
Sumida River Ryosai I and his son Inoue Ryosai II. In the late 1890s, Ryosai I developed a style of applied figures on a surface with flowing glaze, based on Chinese glazes called "flambe." Sumida pieces could be teapots, ash trays, or vases, and were made for export to the West. Inoue Ryosai III, grandson of Ryosai I, moved the manufacturing site to Yokohama in 1924, but the pieces continued to be identified as Sumida ware. The pottery has been subject to various myths, such as being manufactured on the make-believe island of Poo, which was washed away by a typhoon, or