Peopling of the Kilimanjaro Corridor
The boundaries of this corridor can be defined within the Maasai territory (Map 1; Map 2). The corridor stretches from the Arusha Region, through the Kilimanjaro Region of Tanzania to the Taita-Taveta County of Kenya.
Source: Wikipedia — Peopling of the Kilimanjaro Corridor (CC BY-SA 4.0)