The central part of the County is characterized by hilly ridges separated by wide low lying areas and has a slightly lower elevation of between 600m and 900m above sea level to the eastern side of the county. To the western side of the county, the main relief feature is the Yatta Plateau, which stretches from the north to the south of the county and lies between Rivers Athi and Tiva. The plateau is characterized by plain wide shallow spaced valleys. Other highland areas in Kitui County include Migwani, Mumoni, and Mui Hill