Fragments of the ground-edge stone ax blade were found at the Carpenter's Gap archaeological site in northwestern Australia. The tool fragments are estimated to be between 46,000 and 49,000 years old. [Read full story about the ax blade discovery]
One of the key features of the newfound ax is that its stone blade has been ground down on both sides to form a beveled edge.
Researchers say these types of axes, used for heavier work, were distinctive to modern humans
Dig site map
Learning from the past
Map of the dig
Below: a map of the archaeological digs at the Carpenter's Gap 1 site.