About 3 million Indigenous artefacts were discovered at the Jordan River levee north of Hobart.
The State Government commissioned archaeologists to examine the site after the Aboriginal community raised concerns that construction of the Brighton bypass could damage it.
The site’s archaeological director, Rob Paton, says the final report on the dig confirms some artefacts are about 40,000 years old.
“They’re stone artefacts, they’re used for day to day living, cutting and sharpening. It’s that day-to-day stuff that really is rarely found,” he said.
“That’s why to get a snapshot of what life was like 40,000 years ago is really quite unique, not just for Australia but for hunter-gatherer sites anywhere in the world.”
Tasmania’s Department of Infrastructure insists the site will be protected.