古小川

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古小川 flows into (unnamed) , which it joins at N 33° 15′ 46″, E 130° 17′ 24″ at OSM node n1987921925, and there 958 m of total upstream flows in. load it's distributaries

古小川 has 1 tributaries.

• (unnamed), which joins it at N 33° 15′ 49″, E 130° 17′ 21″ at OSM node n1987921918, and 854 m of total upstream flows in.
load it's tributaries