(unnamed)

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(unnamed) flows into the sea: 4 km flows in at N 36° 2′ 1″, E 139° 33′ 43″ at OSM node n1047474516. (unnamed) flows into 赤堀川 , which it joins at N 36° 2′ 36″, E 139° 33′ 19″ at OSM node n1048147671, and there 6 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 旧谷田川, which joins it at N 36° 2′ 30″, E 139° 33′ 8″ at OSM node n1048202669, and 6 km of total upstream flows in.
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