Moskva (məskväˈ) [key], river, c.310 mi (500 km) long, rising in the hills W of Moscow, in central European Russia, and meandering generally E past Mozhaisk and Moscow to join the Oka River near Kolomna. It is connected with the upper Volga River at Dubna by the Moscow-Volga Canal (80 mi/130 km long).
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