古川
古川 is 5 km long, and has a stream level of 2.
Map of 古川
This area:
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osm.org Distributaries / Outflows
古川 flows into 釜無川
, which it joins at
N 35° 40′ 41″, E 138° 28′ 53″
at OSM node
n758952509,
and there 828 km of total upstream flows in.
Tributaries
古川 has 0 tributaries.