Core Insights - The Zhengjiagou site in Zhangjiakou, Hebei Province, is part of a major archaeological project focused on the "Red Mountain Society Civilization Process" [3] - Since the excavation began in 2022, over 200 relics have been discovered, including stone walls, stone coffin tombs, and sacrificial pits, along with more than 400 artifacts such as jade and pottery [3][6] - The carbon dating results indicate that the No. 1 stone tomb dates back to the late Red Mountain culture, marking a significant find outside the core area of this culture [6] Group 1 - The Zhengjiagou site is a key archaeological project aimed at understanding the Red Mountain culture [3] - Important discoveries include over 200 relics and 400 artifacts, showcasing typical characteristics of the Red Mountain culture [3][6] - The findings provide new materials for studying the distribution of the Red Mountain culture and its burial and sacrificial customs [6] Group 2 - The site is significant for understanding prehistoric cultural exchanges between the Liaoxi and Hebei Northwest regions [6] - The discoveries at Zhengjiagou offer crucial clues for further exploration of the Red Mountain culture's trajectory [6]