burials, the production of red-burnished pottery, and production of polished groundstone daggers. Middle Mumun The Middle (or Classic) Mumun (c. 850-550 BC) is characterized by intensive agriculture, as evidenced by the large and expansive dry-field remains (c. 32,500 square metres) recovered at Daepyeong, 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 in Southern Korea. Other high status burials contain greenstone (or jade) ornaments. A number of megalithic burials with deep shaft interments, substantial 'pavements' of rounded cobblestone, and prestige artifacts such as bronze daggers, jade, and red-burnished vessels were built in the vicinity of the southern coast in the Late Middle Mumun. High status megalithic burials and large raised-floor buildings at the Deokcheon-ni (Hangeul: 덕천리) and Igeum-dong sites in Gyeongsang Nam-do provide further evidence of the growth of social inequality and the existence of polities that were organized in ways that appear to be similar to simple "chiefdoms". Korean archaeologists sometimes refer to Middle Mumun culture as Songguk-ri Culture (Hanja: 松菊里 文化; Hangeul: 송국리 문화). Co-occurring artifacts and features that are grouped together as Songguk-ri Culture are found in settlement sites in the Hoseo and Honam regions of southeast Korea, but Songguk-ri Culture settlements are also found in western Yeongnam. Excavations have also revealed Songguk-ri settlements in the Ulsan and Gimhae areas. In 2005 archaeologists uncovered Songguk-ri Culture pit-houses at a site deep in the interior of Gangwon Province. The ultimate geographic reach of Songguk-ri Culture appears to have been Jeju Island and western Japan. Mumun culture is the beginning of a long-term tradition of rice-farming in Korea that links Mumun Culture with the present day, but evidence from the Early and Middle Mumun suggests that, although rice was grown, it was not the dominant crop. During the Mumun people grew millets, barley, wheat, legumes, and continued to hunt and fish. Late Mumun The Late (or Post-classic) Mumun (550-300 BC) is characterized by increasing conflict, fortified hilltop settlements, and a concentration of population in the southern coastal area. A Late Mumun occupation was found