概要
Lake Mungo is one of a chain of now-dry lakebeds in the Willandra Lakes Region of far southwestern New South Wales, Australia. Between roughly 50,000 and 19,000 years ago, the lake held water fed by the Willandra Creek, supporting a rich lakeside ecosystem of fish, shellfish, and waterfowl that in turn sustained sustained human occupation for tens of thousands of years before the lake system dried permanently as the climate shifted at the end of the last glacial period.
Along the lake's eastern shore, wind erosion has carved a spectacular 33-kilometre crescent of dunes known as the Walls of China, exposing layered sediments that have preserved an extraordinarily long and continuous archaeological record. In 1968, geologist Jim Bowler discovered cremated human remains eroding from these dunes — a find that came to be known as Mungo Lady (formally Lake Mungo 1, or LM1). Further analysis showed her body had been cremated, the bones crushed, and then reburied — the oldest known cremation anywhere in the world. In 1974, Bowler discovered a second skeleton nearby, Mungo Man (LM3), an adult male buried on his back with his hands crossed over his groin, his body sprinkled with red ochre transported from a source many kilometres away — among the oldest known instances of ochre burial ritual in the world.
Dating the Mungo remains has been a long and contested scientific process spanning several decades and multiple dating techniques, including radiocarbon, thermoluminescence, electron spin resonance, and uranium-series dating. Current consensus places Mungo Man's burial at approximately 40,000–42,000 years ago, though some researchers have argued for dates as early as 60,000 years. Regardless of the exact figure, the Mungo remains represent the oldest confirmed anatomically modern human remains found outside Africa, and among the earliest reliably dated evidence of ritual burial practice anywhere on Earth.
Beyond the two named burials, the Willandra Lakes shorelines have yielded an immense assemblage of stone tools, hearths, shell middens, and the fossilised footprints of the Willandra Lakes Trackway — a set of more than 700 human footprints preserved in a former claypan, made by a group of people, including children, running and walking across the wet lakebed mud roughly 20,000 years ago. The site continues to actively erode, exposing new material each year, which has made ongoing collaboration between archaeologists and the Barkindji, Ngyiampaa, and Mutthi Mutthi Traditional Owners central to the site's management. Following sustained advocacy from these communities, Mungo Man's and Mungo Lady's remains — removed for study in the 1970s — were formally returned to Traditional Owner custody in 2017 and reburied within the Willandra Lakes Region in 2022. The Willandra Lakes Region was inscribed as a UNESCO World Heritage Site in 1981.