More than 200 cliff cave burial sites have been identified in Zhengxing Township in Chengdu, in southwest China’s Sichuan Province. The 200 burial sites number is deceptive; they are not just holes in the ground, but a cluster of hewn rooms, carved out of the cliffs overlooking the Jinjiang River. Some of the tombs have up to seven chambers with tunnels as long as 20 meters (65 feet).
Unfortunately, the tombs appear to have been previously looted. Amazingly, despite that, a large number of artifacts were recovered; initial estimates are that around 1,000 gold, silver and bronze artifacts are still there. The tombs date between 206 BCE and 420 CE – the Han Dynasty through the Wei-Jin period.