Explanation:

The North Koel rises on the Chhota Nagpur plateau and enters Latehar district , below Netarhat near Rud. After flowing nearly due west for about 32 kilometres (20 mi), it turns north at an almost complete right angle through a gorge at Kutku, and flows through the centre of the district until it falls into the Son a few miles north-west of Haidarnagar.

Mention may be made of the metamorphic rocks which form the watershed between the North Koel and the Damodar to the west of the Chandwa-Balumath road. The North Koel, along with its tributaries, meanders through the northern part of Betla National Park.