Ust-Reka (Russian: Усть-Река) is a rural locality (a selo) and the administrative center of Ustretskoye Rural Settlement, Syamzhensky District, Vologda Oblast, Russia.

[3] Ust-Reka is located 21 km west of Syamzha (the district's administrative centre) by road.

Kuzminskaya is the nearest rural locality.

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