Devil's Lair is a single-chamber cave with a floor area of around 200 square metres that formed in a Quaternary dune limestone of the Leeuwin–Naturaliste Ridge, 5 kilometres from the modern coastline of Western Australia. The stratigraphic sequence in the cavefloor deposit consists of 660 centimeters of sandy sediments, with more than 100 distinct layers, intercalated with flowstone and other indurated deposits. Excavations have been made in several areas of the cave floor. Since 1973, excavations have been concentrated in the middle (approximately on a north-west, south-east axis) of the cave, where 10 trenches have been dug. Archaeological evidence for intermittent human occupation extends down to layer 30 (about 350 cm), with hearths, bone, and stone artifacts found throughout.
Devil's Lair has been the subject of scientific research since the 1970s by palaeontologists and archaeologists. Excavations have recovered stone artefacts, numerous animal bone remains, hearths, bone artefacts and human skeletal remains. Preservation of cultural materials has been very good and a long, well dated cultural sequence has been documented. 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.
Devil's Lair is an Australian winery based at Forest Grove, in the Margaret River wine region of Western Australia. It is named after the Devil's Lair cave, which is just across the Bussell Highway from the winery's vineyard.
Established in 1985, the winery was acquired in December 1996 by Southcorp, which was later taken over by Foster's Group. In May 2011, Foster's Group's wine business, including Devil's Lair, was spun off into a separate company, Treasury Wine Estates.
The Devil's Lair winery also makes the wines marketed under the brand name "Fifth Leg".