上ポン木直川

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上ポン木直川 flows into ポン木直川 , which it joins at N 41° 52′ 39″, E 141° 3′ 9″ at OSM node n1452491477, and there 6 km of total upstream flows in. load it's distributaries

上ポン木直川 has 1 tributaries.

• (unnamed), which joins it at N 41° 52′ 28″, E 141° 2′ 53″ at OSM node n1452486518, and 517 m of total upstream flows in.
load it's tributaries