Wanrengang "Yaoguan Man" Site

　　The Wanrengang "Yaoguan Man" Site is situated on the terrace of Wanrengang Rock Shelter behind Xiaohanzhuang Village, north of the Yaoguan Basin. It includes two rock shelters—upper and lower—on Wanrengang, with an artifact distribution area covering more than 500 square meters. The cultural layer is about 1 meter thick. In late September 1987, a rescue excavation was carried out. From the lower rock shelter, one fossilized skull of the "Yaoguan Man" was unearthed, along with over 100 fossil specimens of birds and mammals, over 100 stone, bone, and antler tools, and two hearths. Among the animal fossils were species such as birds, macaques, tigers, bears, cattle, deer, muntjacs, musk deer, porcupines, and goats. Stone tools included unifacial cobble hand hammers, perforated ring-shaped tools, chopping tools, hammerstones, scrapers, and points. The hearths contained dense charcoal fragments, burnt bones, and red burned soil, with ash layers cemented with travertine into hard slabs. The degree of fossil fossilization and the characteristics of the stone tools are largely consistent with those found at the Puliang Tangzigou Site, suggesting a similar age of around 8,000 years. The "Yaoguan Man" skull fossil is the most complete human fossil discovered so far in Yunnan’s Paleolithic sites, holding significant academic value for the study of human history, biological history, paleogeography, and paleoclimate in Shidian County and the Nujiang River basin.