A gorge cut through basalt rock, over millions of years, by the Kerio river. It is one of 3 such gorges along a 60 km stretch of this river.
 

The escarpment averages 1000m from edge down to the valley. To the north, it stretches into West Pokot —a distance of 180 km. Along its whole length, it offers magnificent views to the east.

Near Arror; the gorge was eroded out by the Kerio river. In a heavy rainy season, the flood through the gorge can be spectacular.

The Embobut is one of several rivers that have their waters diverted for considerable distances, through furrows, to the “shambas” of the local valley inhabitants. Some of the furrows are more than 150 years old.