Dayangzhou, Archaeological excavation site on Gan River in Xin'gan County, China

Dayangzhou is an archaeological excavation site on the Gan River where a rectangular tomb containing over 480 bronze artifacts and around 1000 jade objects was uncovered in 1989. The findings date from the second millennium BCE and demonstrate the advanced craftsmanship of this early civilization.

Farmers digging sand at Laobei Shoal in Chengjia village found bronzes on 20 September 1989; the Jiangxi Provincial Institute of Cultural Relics and Archaeology then excavated the site. The finds date to the late Shang period, around 1200 BCE, and belong to the Wucheng culture. The excavation was named one of China's 100 major archaeological discoveries of the 20th century, and the site became a Jiangxi provincial protected unit in 2000.

The site is linked to the Wucheng culture, and its bronze casters adopted Erligang techniques before developing a local style. The 54 bronze vessels and over 480 bronze objects found here are kept mainly in the Jiangxi Provincial Museum.

The archaeological discoveries can be viewed in exhibition spaces at the Jiangxi Provincial Museum rather than at the original excavation site. Visitors should note that detailed information about excavation methods and conservation techniques is also available there.

Some archaeologists doubt the find was a tomb at all: sand shifts had destroyed the coffin and skeletal remains, and a minority view holds the deposit was a sacrificial offering instead, with three variants proposed. The bronzes number 475 and the jades 754 among 1,300-plus objects.