Devil's Lair is a single-chamber cave with a floor area of around 200 m2 (2,200 sq ft) that formed in a Quaternary dune limestone of the Leeuwin–Naturaliste Ridge, 5 km (3.1 mi) from the modern coastline of Western Australia.

The diversity and productiveness of the evidence from Devil's Lair make it unusually valuable as a source of information on cultural and natural history in the extreme southwest of Australia since the first colonisation of the continent.

The earliest palaeontological examination at the site was undertaken by E. L. Lundelius in 1955, then an American Fulbright scholar researching mammalian Pleistocene fauna in Western Australia.

These tools are both complex and versatile, including flakes, bone points, adze-like scrapers, and limestone, quartz and chert scalar cores.

Additionally, local wooded plants intermixed within the charcoal were able to be identified and helped to categorize the dates of inhabitation in reference to climate.

[16][17] Excavations at Devil's Lair have yielded early human ornaments in the form of three ground bone beads dating to 19,000–12,700 years BP.

These beads were made from the limb-bones of macropods and were manufactured by cutting the bone shafts into short segments and grinding them smooth on abrasive stone.

A deliberately perforated but otherwise unmodified stone object with wear patterns suggestive of its use as a pendant dated to 14,000 year BP has also been recovered from Devil's Lair.