a sprawling settlement with several multiple ditch enclosures, hundreds of pit-houses, specialized production, and evidence of the presence of incipient elites and social competition. A number of wet-field features have been excavated in southern Korea, indicating that paddy field rice-farming was also practiced.

Burials dating to the latter part of the Middle Mumun (c. 700-550 BC) contain a few high status mortuary offerings such as bronze artifacts. Bronze production probably began around this time