Artefacts newly unearthed at a cliff cave tomb group in Chengdu show that the 200 burial sites at the 10,000 square meters' tomb complex are dated from Han Dynasty (202 BC to AD 220) to Northern and Southern Dynasties (AD 420-581).

The site is located at Zhengxing town of the Chengdu sections of the Tianfu New Area. The cultural relics and archeology institute of Chengdu began salvage excavation works at the site at the end of 2016.