The Nerl () is a river in the Yaroslavl, Ivanovo, and Vladimir Oblasts in Russia, a left tributary of the Klyazma (Volga's basin). The river is long, and its drainage basin covers .«Река НЕРЛЬ», Russian State Water Registry The Nerl River freezes up in November or December and stays under the ice until April. Its main tributary is the Ukhtoma.
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