Iruma River
| The Iruma River (入間川, Iruma-gawa), is a river in Saitama Prefecture, Japan.[1][2] It is 63 kilometres (39 mi) long and has a watershed of 721 square kilometres (278 sq mi). The river rises from Mount Ōmochi in Hannō, Saitama and flows to the Arakawa River at Kawagoe, Saitama. 35°54′35″N 139°32′43″E / 35.90982°N 139.545139°E / 35.90982; 139.545139 | ||||||
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| Length： 63 km (39 mi) | ||||||
| Basin size： 721 km2 (278 sq mi) | ||||||
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