荒川

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荒川 flows into 行川 , which it joins at N 36° 42′ 41″, E 139° 40′ 1″ at OSM node n759179550, and there 16 km of total upstream flows in. load it's distributaries

荒川 has 2 tributaries.

• 山窪川, which joins it at N 36° 42′ 40″, E 139° 39′ 9″ at OSM node n759220337, and 2 km of total upstream flows in.
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• (unnamed), which joins it at N 36° 42′ 43″, E 139° 38′ 56″ at OSM node n759192821, and 678 m of total upstream flows in.
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