A large cluster of boat-shaped coffin tombs are unearthed in Shuangyuan village, Qingbaijiang district of Chengdu, capital of Southwest China's Sichuan province. [Photo/Chinanews.com]

Nearly 200 boat-shaped coffin tombs dating back 2,200 years have been unearthed after one year of archaeological exploration and excavation.

The tomb cluster was discovered in Shuangyuan village, Qingbaijiang district of Chengdu, capital of Southwest China's Sichuan province. It covers an area equivalent to the size of two football fields.

According to archeologists from Chengdu Cultural Relics and Archeology Institute, the tombs could date back to the Spring and Autumn Period (770-476 BC) and the Warring States Period (475-221 BC).

Thousands of relics were also unearthed from the boat-shaped coffin tombs, including exquisite bronze wares, lacquers, and pottery. The findings are of great significance to the study of ancient Shu culture in Chengdu area.