Olduvai Gorge (also Oldupai Gorge) is a steep-sided ravine in the Great Rift Valley stretching across the eastern Serengeti Plains in northern Tanzania. This remarkable site preserves nearly two million years of human evolutionary history and has yielded some of the most significant fossil discoveries in the world.
In 1959, Mary Leakey discovered the skull of Paranthropus boisei here, and subsequent excavations revealed Homo habilis remains — some of the earliest evidence of human tool use. The on-site museum displays replicas of key finds and explains the geological layers that reveal millions of years of prehistory.
Located between Ngorongoro Crater and the Serengeti, Olduvai Gorge is a compelling stop for visitors interested in human origins and archaeology.