The Kuolajoki (Russian: Куолайоки, Finnish: Kuolajoki) is a river in the south of the Kola Peninsula in Murmansk Oblast, Russia and in Lapland, Finland. It is 30 kilometres (19 mi) long. The area of its basin is 1,635 square kilometres (631 sq mi). The Kuolajoki originates in the Lake Kuolayarvi in Russia and flows into the river Tenniöjoki in Finland. Its biggest tributary is the Kolsanoya.
| Kuolajoki | |
|---|---|
 Kuolajoki in Kotala, Salla, Finland | |
 | |
| Native name | Куолайоки (Russian) |
| Location | |
| Countries | |
| Region | Murmansk Oblast, Lapland (Finland) |
| Physical characteristics | |
| Source | Lake Kuolayarvi |
| • elevation | 207 m (679 ft) |
| Mouth | Tenniöjoki |
• coordinates | 67°06′18″N 28°49′02″E / 67.1049°N 28.8173°E |
| Length | 30 km (19 mi) |
| Basin size | 1,635 km2 (631 sq mi) |
| Basin features | |
| Progression | Tenniöjoki→ Kemijoki→ Gulf of Bothnia |
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