(unnamed)

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(unnamed) flows into 大石河 , which it joins at N 39° 38′ 0″, E 116° 0′ 48″ at OSM node n3419881799, and there 290 km of total upstream flows in. load it's distributaries

(unnamed) has 2 tributaries.

• 周口店河, which joins it at N 39° 38′ 31″, E 116° 0′ 30″ at OSM node n3419881806, and 32 km of total upstream flows in.
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• 马刨泉河, which joins it at N 39° 38′ 31″, E 116° 0′ 30″ at OSM node n3419881806, and 14 km of total upstream flows in.
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