Yuancun Site is a large-scale settlement nearest the Salt Lake in Shanxi's Yuncheng.In 2018,archaeological excavations were carried out on the periphery of the site,and abundant relics of the middle to late Yangshao period were discovered.The large number of sack-shaped pits and complex fire pits within the dwelling sites bear distinctive cultural features.Together with Shicun Site,Xiyincun Site,Cuijiahe Site and others,Yuancun Site makes up and completes the sequence of cultural evolution from the early to mid-late Yangshao period in the Qinglong River valley.