Oka (Angara)
| Oka | |
|---|---|
Mouth location in Irkutsk Oblast, Russia | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Source | |
| • location | Oka Plateau, Sayan Mountains |
| Mouth | Angara |
• location | Bratsk Reservoir |
• coordinates | 55°30′55″N 102°20′54″E / 55.51528°N 102.34833°E |
| Length | 630 km (390 mi) |
| Basin size | 34,000 km2 (13,000 sq mi) |
| Basin features | |
| Progression | Angara→ Yenisey→ Kara Sea |
.jpg){kind=link}
The Oka (Russian: Ока, Buryat: Аха, romanized: Akha) is a river in Siberia, left tributary of the Angara. It is 630 kilometres (390 mi) long, and has a drainage basin of 34,000 square kilometres (13,000 sq mi).