西コーカサス
Mzymta (, , lit. 'the place (-ҭа) of the river Мӡым", , "Mezmytha") is a river in Western Caucasus, Russia, flowing through Mostovsky District and the city of Sochi (Adlersky City District) of Krasnodar Krai, Russia. Mzymta is the largest river in Russia emptying into the Black Sea. It is long with a watershed of . All the venues of the 2014 Winter Olympics were in the Mzymta Valley.