An extensive open‐air site, on an ancient floodplain bordering the Swan River, has been partially uncovered by a clay pit operation. Preliminary excavations of small areas have yielded stone artefacts intimately associated with charcoal and carbonized material, possibly resin. A series of radiocarbon measurements place the site among the earliest yet known from Australia, and indicate that the southwestern corner of the continent was populated by about 40,000 years ago.
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Pearce et al. (1981) studied this question.