Turkana County is a county in the former Rift Valley Province of Kenya. Turkana is the largest and also the north-western most county in Kenya. It is bordered by the countries of Uganda to the west; South Sudan and Ethiopia, including the disputed Ilemi Triangle, to the north and northeast; and Lake Turkana to the east. To the south and east, neighbouring counties in Kenya are West Pokot, Baringo and Samburu Counties, while Marsabit County is located on the opposite (i.e. eastern) shore of Lake Turkana.