Koyva River

Koyva River ( _ru. Койва) is a river in Perm Krai in Russia, right tributary of the Chusovaya River (Kama's basin). The length of the river is 180 km. The area of its drainage basin is 2,200 km². It was along the Koyva River that the first ever diamonds were found in 1829 in Russia.

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