Первый

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Первый flows into Солоновка , which it joins at N 51° 55′ 58″, E 84° 29′ 27″ at OSM node n8326035924, and there 79 km of total upstream flows in. load it's distributaries

Первый has 2 tributaries.

• (unnamed), which joins it at N 51° 55′ 45″, E 84° 29′ 43″ at OSM node n8326035971, and 1 km of total upstream flows in.
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• (unnamed), which joins it at N 51° 55′ 34″, E 84° 29′ 47″ at OSM node n8326035994, and 592 m of total upstream flows in.
load it's tributaries