オオワカ沢

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オオワカ沢 flows into 古寺川 , which it joins at N 38° 18′ 25″, E 139° 58′ 20″ at OSM node n755657547, and there 10 km of total upstream flows in. load it's distributaries

オオワカ沢 has 1 tributaries.

• (unnamed), which joins it at N 38° 18′ 16″, E 139° 58′ 6″ at OSM node n755377464, and 1 km of total upstream flows in.
load it's tributaries