Several artifacts dating back 4,000 or even 10,000 years have been found in the area that will be inundated in May when a reservoir comes into being in Quang Ngai Province's mountainous district of Tay Tra.
Dr. Doan Ngoc Khoi of the Quang Ngai Museum said the excavation was completed in two months by the museum in cooperation with the Vietnam Institute of Archaeology.
The items found include 10,000-year-old stone axes, pestles, graters and pottery items made by the Kinh people, who make up the majority of the Vietnamese population, under the Ly, Tran and Le dynasties, he said.
Local scientists also found cultural vestiges of the Kor and Hre people, native to the central province, indicating trade and other exchanges between the Kinh community and the ethnic minority people started very early.
The recent discoveries will motivate scientists to look again at the origins of the central region's prehistoric Sa Huynh Culture (1,000BC-200AD) which may have begun in the Central Highlands, the archaeologist said.