In 1947 a well-preserved skull of a species of early man known as Plesianthropus transvaalensis was discovered.
The skull became known as Mrs. Ples, dating back 2.5 million years. The total of over 700 hominid specimens found here has made Sterkfontein the world’s richest hominid site. A section of the caves is visited on an hour long guided tour and the excavation site can be viewed. A visit to the newly built Sterkfontein Orientation Centre is also included, displaying information about significant findings, as well as general information on human and cultural evolution.