archaeological excavation of the site until the Japanese invasion in 1937, resuming in 1950.A permanent work station was established on the site in 1959.

The city covered an area of some 25 km2, focussed on a complex of palaces and temples on a rise surrounded by the Huan River on its north and east, and with an artificial pond on its western side.Further caches of oracle bones were discovered nearby.The area immediately to the south of the palace district