Ивак

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Ивак flows into Утук , which it joins at N 55° 55′ 34″, E 130° 45′ 39″ at OSM node n2580836353, and there 91 km of total upstream flows in. load it's distributaries

Ивак has 2 tributaries.

• Ивак 2-й, which joins it at N 55° 49′ 41″, E 130° 49′ 38″ at OSM node n2580836148, and 17 km of total upstream flows in.
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• Утук-Макит, which joins it at N 55° 47′ 1″, E 130° 48′ 15″ at OSM node n2580836041, and 5 km of total upstream flows in.
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