Where in Kenya is Tenwek?

Finding a map of Tenwek's location has proved surprisingly hard, so I thought I would provide one (with help from MapQuest), in a "zooming in" series for orientation. Tenwek is the red star. You can click on each image to enlarge it for detail. The big body of water nearby is Lake Victoria. The primary tribal group is Kipsigis, but they provide care for a number of other tribal groups, including the more nomadic Masai.