Oka River
From Wikipedia, the free encyclopedia.

Oka (Ока́) is a great river in Russia, right confluent of Volga.

Cities and towns that stay on Oka

• Puschino-na-Oke
• Serpukhov
• Nizhny Novgorod

The original article can be found at: http://en.wikipedia.org/wiki/Oka_River.
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