Ugra River (Oka)
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Ugra (Russian: Угра) is a river in Smolensk and Kaluga Oblasts in Russia, left tributary of the Oka River. The river is known for the Great stand on the Ugra river.
Ugra (Russian: Угра) is a river in Smolensk and Kaluga Oblasts in Russia, left tributary of the Oka River. The river is known for the Great stand on the Ugra river.