Tokko (river)
| Tokko | |
|---|---|
Mouth location in Yakutia, Russia | |
| Location | |
| Country | Russia |
| Federal subject | Yakutia |
| Physical characteristics | |
| Source | Udokan Range Stanovoy Highlands |
| • coordinates | 57°12′21″N 119°39′33″E / 57.20583°N 119.65917°E |
| • elevation | 1,369 m (4,491 ft) |
| Mouth | Chara |
• coordinates | 59°50′54″N 120°22′25″E / 59.84833°N 120.37361°E |
• elevation | 130 m (430 ft) |
| Length | 446 km (277 mi) |
| Basin size | 23,100 km2 (8,900 sq mi) |
| Discharge | |
| • average | 220 m3/s (7,800 cu ft/s) |
| Basin features | |
| Progression | Chara→ Olyokma→ Lena→ Laptev Sea |
The Tokko (Russian: Токко) is a river in Yakutia, East Siberia, Russian Federation. It is the largest tributary of the Chara river in terms of length and area of its basin. The river is 446 kilometres (277 mi) long and has a drainage basin of 23,100 square kilometres (8,900 sq mi). It is navigable in its final stretch, 131 km (81 mi) from its confluence with the Chara. Tokko village is located by the river bank.
The Chara-Tokkinskaya group of deposits (Чара-Токкинская группа месторождений), the largest iron ore accumulation in Russia, is located in the Tokko basin. Rock art depictions of ancient hunters dating back to the 1st - 2nd millennia BC have been preserved on a limestone ridge rising 4 m (13 ft) to 18 m (59 ft) above the river's right bank 18 km (11 mi) from its mouth.
The waters of the Tokko are rich in fish, including grayling, lenok, taimen, pike and common dace, among other species.