| Koyva | |
| Source1 Location: | Ural Mountains |
| Length: | 180km (110miles) |
| Mouth Coordinates: | 58.2331°N 58.2039°W |
| Basin Size: | 2250km2 |
The Koyva (ru|Койва) is a river in Perm Krai in Russia, a right tributary of the Chusovaya (Kama's basin). The river is 180km (110miles) long, and its drainage basin covers .[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, 66km (41miles) 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:
Name of river is a composition of Komi-Permyak words ‘koy’ (splash) and ‘va’ (water).