Olduvai Gorge contains the earliest remains of our human and prehuman ancestors. Paleoanthropologists have uncovered hundreds of fossilized bones and stone tools dating back more than 2 million years. The gorge is in Tanzania, located in the Great Rift Valley, between the Ngorongoro Crater and Serengeti National Park. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.