|Length||796 km (495 mi)|
|Basin area||30,800 km2 (11,900 sq mi)|
The length of the river is 796 kilometres (495 mi). The area of its drainage basin is 30,800 square kilometres (11,900 sq mi). It originates in the north-west of the Chersky Range. The river flows through the Momo-Selennyakh depression and Abyisky lowland. The average annual water consumption - in the mouth - is 180 cubic metres per second (6,400 cu ft/s).