Mollusk shells,Da But culture (Thanh Hoa province), Quynh Van culture (Nghe An province), c. 7,000 to 4,500 BP.
Mollusk shells,Da But culture (Thanh Hoa province), Quynh Van culture (Nghe An province), c. 7,000 to 4,500 BP.
The discovery of shell mounds in coastal regions of Vietnam indicate the inhabitants' tendency to exploit the abundance of mollusks, which were an important food source for coastal people in this period. This also shows that the people were closely attached to the environment.