Finished on 5/11/09:

SHADOW VALLEY by Steven Barnes, 2009.
Novel set in prehistoric Africa, follows tribal wanderings of the Ibandi, led by heroine T'Cori, the Great Sky Woman. It is up to her to lead her peaceful people away from their enemies and into a land of peace and plenty near Mt. Kilimanjaro. Interesting, plenty of violence and action, details of tribal life in Africa 30,000 years ago. A good read, something different for me in terms of time period and locale.