Archeologists have discovered hundreds of cultural relics from the Qin and Han dynasties in Yin county, Ningbo province. (Photo: people.cn/ Zhang Yongtao)

The relics included pottery, porcelain, stone and steel, and building components. (Photo: people.cn/ Zhang Yongtao)

They also found relics of the old city wall, a pond, workshop, a kitchen and ash pit. (Photo: people.cn/ Zhang Yongtao)

From December 2015 to February 2018, the Ningbo Municipal Institute of Cultural Relics and Archaeology and Fenghua District Institute for the Preservation of Cultural Relics conducted field archaeological work and excavation, including aerial photography, radar scanning, image analysis, and 3-D scanning. (Photo: people.cn/ Zhang Yongtao)

The archaeological survey area covered 800,000 square meters. (Photo: people.cn/ Zhang Yongtao)

The archaeological team also discovered the site of the original Yin County with 750-meter perimeters and 37,000-square-meter area, which was enclosed by mountains and rivers. On the southern side of the county, there is a workshop site with piled blanks. Near the old county, large number of ancient tombs were discovered there. (Photo: people.cn/ Zhang Yongtao)

 (Compiled by Lu Fangzhu)