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| Kolva | |
|---|---|
 | |
 Scheme of the Kama River Basin. | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Source | |
| • location | North Ural |
| Mouth | Vishera |
• coordinates | 60°21′56″N56°33′11″E / 60.36556°N 56.55306°E /60.36556; 56.55306 |
| Length | 460 km (290 mi) |
| Basin size | 13,500 km2 (5,200 sq mi) |
| Discharge | |
| • average | 457 m3/s (16,100 cu ft/s) |
| Basin features | |
| Progression | Vishera→Kama→Volga→Caspian Sea |
TheKolva (Russian:Колва) is ariver inPerm Krai,Russia, righttributary of theVishera of theKamabasin.[1] The river is 460 kilometres (290 mi) long, and itsdrainage basin covers 13,500 square kilometres (5,200 sq mi).[2] It starts on southeastern slope of mount Kolvinsky Kamen, in northeastern portion of Perm Krai, near the border withKomi Republic. Its mouth is near the town ofCherdyn.[3]
The Kolva freezes up in early November and stays under the ice until late April or early May. The river is navigable within 200 to 250 kilometres (120 to 160 mi) of itsestuary during the high-water season. The town ofCherdyn is along on the Kolva.
Main tributaries (from source to mouth):[2]
The ancient route from the Volga region in the Pechora region passed along the Kolva. Between Cherdyn andNyrob were found severalChud settlements, in which occur oriental coins, evidence of the importance of the Kolva as a route of communication between ancientVolga Bulgaria and the remote north.