古城河

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古城河 flows into (unnamed) , which it joins at N 40° 29′ 54″, E 116° 5′ 30″ at OSM node n2351115778, and there 12 km of total upstream flows in. load it's distributaries

古城河 has 1 tributaries.

• (unnamed), which joins it at N 40° 30′ 7″, E 116° 5′ 25″ at OSM node n3632389807, and 2 km of total upstream flows in.
load it's tributaries