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a river in the Krasnodar Krai of the RSFSR. Length, 89 km; basin area, 885 sq km. The river originates in the mountains of the Greater Caucasus and flows through a narrow valley; in its upper reaches, it flows through Lake Kardyvach and other lakes. The Mzymta flows into the Black Sea at Adler, forming a broad alluvial fan. The river is fed by mixed sources. There is high water in spring and summer, and flash floods caused by rains are frequent. The mean flow rate at the settlement of Krasnaia Poliana is 33.2 cu m per sec; at the settlement of Kepsh it is 45.6 cu m per sec. The greatest flow rate is 764 cu m per sec. The river is used for floating timber. The Krasnaia Poliana Hydroelectric Power Plant and a reservoir for the daily regulation of the river’s flow are located on the Mzymta.