Nasera Rock rises 50 meters (165 feet) above the surrounding plains with herds of giraffes and is a dramatic inselberg (an isolated rock hill, knob, ridge, or small mountain) located 20 kilometers north of Olduvai Gorge. The natural striped coloration of the rock, combined with ancient paintings in a prehistoric shelter at its base, are believed to have inspired its name, which was derived from the Maasai, Naasira, meaning “striped, written, or drawn.” Here, we discussed the local history of human occupation of Nasera Rock, and its geologic and Paleolithic significance.