Its drainage basin area is 24,800 square kilometres (9,600 sq mi).

[2] The Kuonamka Formation is a Cambrian large igneous province in the northeastern Siberian platform.

The river has its source in an elevated swamp at an altitude of 375 m (1,230 ft) in the eastern side of the Anabar Plateau.

Finally they meet where the Anabar river proper begins, 380 km (240 mi) from its mouth in the Laptev Sea.

[1] The main fish species in the river are grayling, taimen and whitefish.