(unnamed)

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(unnamed) flows into 한강 , which it joins at N 37° 37′ 59″, E 126° 44′ 52″ at OSM node n10816320212, and there 9,130 km of total upstream flows in. load it's distributaries

(unnamed) has 1 tributaries.

• 계양천방수로, which joins it at N 37° 37′ 41″, E 126° 44′ 38″ at OSM node n10816320355, and 3 km of total upstream flows in.
load it's tributaries