龙河

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龙河 flows into 永定河 , which it joins at N 39° 23′ 16″, E 116° 53′ 48″ at OSM node n4590343686, and there 3,373 km of total upstream flows in. load it's distributaries

龙河 has 3 tributaries.

• 大龙河, which joins it at N 39° 35′ 0″, E 116° 31′ 15″ at OSM node n3248857219, and 43 km of total upstream flows in.
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• 碱河, which joins it at N 39° 31′ 21″, E 116° 36′ 37″ at OSM node n8792198630, and 19 km of total upstream flows in.
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• (unnamed), which joins it at N 39° 29′ 4″, E 116° 41′ 9″ at OSM node n8792285728, and 4 km of total upstream flows in.
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