starts on the southern slopes of the Myaochan Range and forms the Tunguska river by junction with the Urmi river. It's total length makes 434 km. The main right-bank tributaries are Yarap, Birakan, Ulika. Alga is it's left-bank tributary. The river flows in the borders of land and mountain area, which makes the difference in the current mode. The current mode is rather calm before merging with Yarap. The rises and falls of the water level appear slowly, what is explained by the influence of bogs and marches.
The wildlife is typical for the Amur basin: brown and Himalayan black bear, Siberian roe, elk, reindeer, hare, river otter, sawbill, gray heron, erne, fish hawk, white oriental stork, taimen, lenok, grayling.
starts on the southern slopes of the Myaochan Range and forms the Tunguska river by junction with the Urmi river. It's total length makes 434 km. The main right-bank tributaries are Yarap, Birakan, Ulika. Alga is it's left-bank tributary. The river flows in the borders of land and mountain area, which makes the difference in the current mode. The current mode is rather calm before merging with Yarap. The rises and falls of the water level appear slowly, what is explained by the influence of bogs and marches.