Idium

a river in Khabarovsk Krai, RSFSR, and along the krai’s border with the Yakut ASSR. The Idium is a right tributary of the Algama (Lena basin). Length, 317 km; basin area, 9,170 sq km. It originates in the eastern part of the Stanovoi Range, flowing to the north; it is winding and full of rapids. The Idium is fed chiefly by rain and snow. The tributaries are the Mulam (left) and the Dess (right). There are approximately 1,000 lakes in the river’s basin.