Later investigations showed that the Erligang site was part of an ancient city surrounded by a roughly rectangular wall with a perimeter of about 7 kilometers (4 mi).

The walls were of rammed earth construction, a technique dating back to Chinese Neolithic sites of the Longshan culture (c. 3000 – c. 1900 BC).

Through carbon dating of wood samples unearthed from Tonglu Mountain in Dazhi, Hubei and Tongling Mining and Metallurgical Site in Ruichang, Jiangxi, comparisons were made between the bronze wares unearthed in Panlongcheng City and Tonglu Mountain.

[1] Erligang bronzes developed from the style and techniques of the earlier Erlitou culture, centered at 85 kilometers (53 mi) to the west of Zhengzhou.

Erligang was the first archaeological culture in China to show widespread use of bronze vessel castings.