The isolated Kerio Valley is situated in a narrow, long strip that is approximately 80 km by 10 km wide at its broadest, through which the Kerio River flows.
4,000 feet (1,200 m) deep, the valley lies between the Cherangani Hills and the Tugen Hills.

The Elgeyo Escarpment rises more than 1,830 metres (6,000 ft) above it in places.
It has semi-tropical vegetation on the slopes, while the floor of the valley is covered by dry thorn bush.

The most comfortable time of the year is in July and August, when the rains have ended and the temperatures are not excessive.

The Kerio Valley National Reserve has been established since 1983 along the Kerio River to the north of Lake Kamnarok.
The isolated Kerio Valley is situated in a narrow, long strip that is approximately 80 km by 10 km wide at its broadest, through which the Kerio River flows. 4,000 feet (1,200 m) deep, the valley lies between the Cherangani Hills and the Tugen Hills.
The Elgeyo Escarpment rises more than 1,830 metres (6,000 ft) above it in places. It has semi-tropical vegetation on the slopes, while the floor of the valley is covered by dry thorn bush.
The most comfortable time of the year is in July and August, when the rains have ended and the temperatures are not excessive.
The Kerio Valley National Reserve has been established since 1983 along the Kerio River to the north of Lake Kamnarok.
Kerio Valley