<Tr> <Th> Coordinates </Th> <Td> 34 ° 4 ′ 3.3" S 115 ° 6 ′ 23.5" E ﻿ / ﻿ 34.067583 ° S 115.106528 ° E ﻿ / - 34.067583; 115.106528 Coordinates: 34 ° 4 ′ 3.3" S 115 ° 6 ′ 23.5" E ﻿ / ﻿ 34.067583 ° S 115.106528 ° E ﻿ / - 34.067583; 115.106528 </Td> </Tr> <P> Devil's Lair is a single - chamber cave with a floor area of around 200 m (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 stratigraphic sequence in the cave floor deposit consists of 660 cm (260 in) 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 (140 in)), with hearths, bone, and stone artefacts found throughout . </P> <P> 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 . </P> <P> 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 . </P>

When was the devils lair found and by who