Panlongcheng is an archaeological site associated with the Erligang culture. The site is located just north of the Yangtze river in Hubei, China. Panlongcheng is the largest excavated Erligang site (1 km² at its peak), showing the southernmost reach of the Erligang culture at its peak. It was discovered in 1954, and excavated in 1974 and 1976.