The Sherna () is a river in Vladimir and Moscow Oblasts in Russia. It is a left tributary of the Klyazma. It has a length of 89 km, and a drainage basin of 1890 km².«Река ШЕРНА», Russian State Water Registry The river is formed by the confluence of the rivers Seraya and Molokcha near Belkovo in Kirzhachsky District of Vladimir Oblast.
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