黒谷川

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黒谷川 flows into 古座川 , which it joins at N 33° 36′ 4″, E 135° 41′ 46″ at OSM node n974699286, and there 61 km of total upstream flows in. load it's distributaries

黒谷川 has 1 tributaries.

• (unnamed), which joins it at N 33° 36′ 15″, E 135° 41′ 55″ at OSM node n974888356, and 457 m of total upstream flows in.
load it's tributaries