大洞川
大洞川 is 1 km long, and has a stream level of 3.
Map of 大洞川
This area:
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osm.org Distributaries / Outflows
大洞川 flows into 瓜巣川
, which it joins at
N 36° 11′ 7″, E 137° 11′ 50″
at OSM node
n726403699,
and there 11 km of total upstream flows in.
Tributaries
大洞川 has 0 tributaries.