Abstract: The Yuanyichang Paleolithic locality, buried in the second terrace near the East Wen river at 35°42′54″N， 117°54′26″E, is situated in the subdistrict office of Mengyin, Mengyin county，Shandong Province. The locality was discovered at June, 2016. Joint team(College of History, Hebei University, Shandong Provincial Institute of Relics and Archaeology, Mengyin county cultural relics management office) have had a series of Paleolithic investigation in Xintai, Mengyin, Yiyuan, Linqu, Zaozhuang Shanting district and Pingdu Cunty during June to July, 2016. Five stratigraphic layers were identified at the site, with the total thickness of more than 2.5m. Archaeological remains were mainly collected from Layer 2, light yellow sandy clay with gravels, 0.4-0.45m in thickness. A total of 43 stone artifacts were unearthed.The lithic assemblage includes cores (n=11), flakes (n=7), chunks (n=8), flake fragments (n=10) and retouched tools(n=7). The general features of these artifacts are summarized as follows: 1) Lithic raw materials exploited at the locality were locally available from ancient riverbeds. Quartzite was the predominant raw material（n=36; 83.7%) used for stone artifacts. 2) The principal flaking technique was direct hammer percussion with core preparation. 3) Most stone artifacts were small and medium in size. 4) Most blanks for tool fabrication were flakes. 5) Scrapers (n=6; 85.7%) dominate retouched pieces, followed by notches.The lithic assemblage shows small flake technology in North China. Geomorphological and chronological comparison in the Mengyin county indicates the geochronology of the locality should be close to late Pleistocene.

Key words: Shandong province; Mengyin county; Yuanyichang paleolithic locality; Stone artifacts; Late Pleistocene