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Oka River - Wikipedia, the free encyclopedia |
 | | This page is for a river in western Russia. |
| | Map of the Volga watershed with the Oka highlighted |
| | Oka (Russian: Ока́) is a large river in central Russia, the largest right tributary of the Volga. |
| en.wikipedia.org /wiki/Oka_River (189 words) |
