房川

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房川 flows into 渡良瀬川 , which it joins at N 36° 30′ 47″, E 139° 18′ 20″ at OSM node n760116908, and there 248 km of total upstream flows in. load it's distributaries

房川 has 1 tributaries.

• (unnamed), which joins it at N 36° 31′ 34″, E 139° 18′ 1″ at OSM node n760072242, and 748 m of total upstream flows in.
load it's tributaries