2014年4月,吉林大学边疆考古研究中心与辽宁省文物考古研究所对辽宁省丹东地区进行旧石器考古调查,其中宽甸满族自治县太平哨镇北山地点发现石器49件。石器原料以石英砂岩为主,打制方法为锤击法。石器包括石核、石片以及二、三类工具。工具可分为刮削器和砍砸器两类。从石器总体特征来看,应属大石器工业类型,年代推测为旧石器时代晚期。 In April 2014, the Frontier Archeology Research Center of Jilin University and the Institute of Cultural Relics and Archeology of Liaoning Province conducted a paleolithic archeological survey of the Dandong area in Liaoning Province. Among them, 49 were found in the Beishan site of the Taipingxuan Town in Kuandian Manchu Autonomous County. Stone materials to quartz sandstone, hammering method for the production method. Stone includes stone, stone and two or three types of tools. Tools can be divided into two types of scrapers and cutters. From the overall characteristics of stone, it should belong to the type of stone industry, speculated that the age of the late Paleolithic.