Koyva
Physical characteristics
Source 
  locationUral Mountains
MouthChusovaya
  coordinates
58°13′59″N 58°12′14″E / 58.2331°N 58.2039°E / 58.2331; 58.2039
Length180 km (110 mi)
Basin size2,250 km2 (870 sq mi)
Basin features
ProgressionChusovayaKamaVolgaCaspian Sea

The Koyva (Russian: Койва) is a river in Perm Krai in Russia, a right tributary of the Chusovaya (Kama's basin). The river is 180 kilometres (110 mi) long, and its drainage basin covers 2,250 square kilometres (870 sq mi).[1] It starts on the western slope of the Ural Mountains, on the slopes of Mount Bolshaya Khmelikha. Its mouth is near the settlement Ust-Koyva, 66 kilometres (41 mi) from the mouth of the Chusovaya River. It is a mountain river with many rapids and shoals.

It was along the Koyva that the first ever diamonds were found in 1829 in Russia. There are urban-type settlement Tyoplaya Gora situated by the river.

Main tributaries:

  • Left: Tiskos, Tyrym, Olkhovka;
  • Right: Biser, Kusya.

Etymology

Name of river is a composition of Komi-Permyak words ‘koy’ (splash) and ‘va’ (water).

References

  1. «Река КОЙВА», Russian State Water Registry


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