Vyvenka

a river in the Koriak National Okrug, Kamchatka Oblast, RSFSR. Length, 395 km; basin area, 13,000 sq km. This river originates on the eastern slopes of the Vetvei Mountain Range, flows southwest through a broad, intermontane valley, and empties into Korf Bay (of the Bering Sea). It is fed by snow and rain.