Some of the stone tools found in Lao Cai [Credit: VNA] |
In areas covering about 20,000 square metres, hundreds of stone artefacts belonging to several prehistoric eras have been unearthed.
The oldest items are working tools made from pebbles found in rivers and springs and dating back 20,000 years.
They also include stone axes and disk-shaped tools dating back to Hoa Binh culture in the New Stone Age about 8,000-9,000 years ago. 4,000-year-old polished axes were also found.
According to Chung, Ngoi Nhu was an uninterrupted residence of prehistoric people in Lao Cai and perhaps a large metal centre in the time of Hung Kings (2879-258 BC).
The excavation is still underway.
Source: Vietnam Plus [August 20, 2015]