城(cheng)(cheng)子山(shan)(shan)(shan)山(shan)(shan)(shan)城(cheng)(cheng)位于敖(ao)漢(han)旗薩力巴鄉哈拉溝村東南(nan)4公(gong)(gong)里的東山(shan)(shan)(shan)上(shang),與瑪尼罕鄉交界(jie)處(chu)。因山(shan)(shan)(shan)之(zhi)頂部(bu)有(you)石砌(qi)圍墻如城(cheng)(cheng),故名“城(cheng)(cheng)子山(shan)(shan)(shan)”,山(shan)(shan)(shan)城(cheng)(cheng)之(zhi)西(xi)北3公(gong)(gong)里處(chu)是薩仁(ren)諾爾月芽湖旅(lv)游區,東北10公(gong)(gong)里是遼代降圣州(zhou)佛塔,南(nan)與旗政府所在地——新惠鎮僅30公(gong)(gong)里。其鄰近山(shan)(shan)(shan)頭環繞錯落(luo)有(you)致(zhi),如眾星拱月般的遺址,以城(cheng)(cheng)子山(shan)(shan)(shan)為中心,形(xing)成(cheng)了一個15平方公(gong)(gong)里的人文和(he)山(shan)(shan)(shan)水風光旅(lv)游區。
城(cheng)子(zi)山(shan)(shan)(shan)山(shan)(shan)(shan)城(cheng)為(wei)橢圓長(chang)(chang)(chang)方形(xing),平(ping)面呈(cheng)(cheng)(cheng)不規則的(de)“亞”字形(xing)。城(cheng)北(bei)、東(dong)、西三面略(lve)呈(cheng)(cheng)(cheng)圓形(xing),南(nan)(nan)(nan)側略(lve)呈(cheng)(cheng)(cheng)長(chang)(chang)(chang)方形(xing),城(cheng)頂地(di)勢較平(ping),西北(bei)略(lve)高(gao),東(dong)南(nan)(nan)(nan)略(lve)低(di),主(zhu)梁總(zong)長(chang)(chang)(chang)2.2公(gong)里(li)(li),呈(cheng)(cheng)(cheng)西北(bei)至(zhi)東(dong)南(nan)(nan)(nan)走向,西側有(you)7道(dao)山(shan)(shan)(shan)梁,東(dong)側有(you)3道(dao)山(shan)(shan)(shan)梁均(jun)與主(zhu)梁相接(jie),最(zui)寬約3公(gong)里(li)(li),山(shan)(shan)(shan)頂主(zhu)峰(feng)的(de)中(zhong)心城(cheng)址(zhi)總(zong)面積達15萬(wan)平(ping)方米,山(shan)(shan)(shan)城(cheng)的(de)四周(zhou)砌(qi)筑(zhu)著石(shi)(shi)圍(wei)墻,并有(you)石(shi)(shi)砌(qi)護(hu)坡,全(quan)城(cheng)設(she)有(you)9門(men),石(shi)(shi)墻周(zhou)長(chang)(chang)(chang)1310米,寬2米。從城(cheng)內平(ping)面布局和地(di)表石(shi)(shi)砌(qi)遺(yi)跡(ji)看,可分(fen)為(wei)6個(ge)(ge)區(qu)(qu)(qu),即中(zhong)心區(qu)(qu)(qu)、東(dong)區(qu)(qu)(qu)、北(bei)區(qu)(qu)(qu)、西區(qu)(qu)(qu)、南(nan)(nan)(nan)區(qu)(qu)(qu)、東(dong)南(nan)(nan)(nan)區(qu)(qu)(qu),區(qu)(qu)(qu)與區(qu)(qu)(qu)之間又有(you)石(shi)(shi)墻相隔,以(yi)門(men)道(dao)相通出入(ru),其中(zhong)主(zhu)墻內側6個(ge)(ge)區(qu)(qu)(qu)共有(you)圓形(xing)石(shi)(shi)砌(qi)建筑(zhu)228個(ge)(ge),主(zhu)墻外側分(fen)布4個(ge)(ge),共計232個(ge)(ge)。在城(cheng)北(bei),東(dong)均(jun)發現厲石(shi)(shi)群、磨光圓窩(wo)石(shi)(shi)塊。城(cheng)西南(nan)(nan)(nan)發現一巨型石(shi)(shi)雕豬首(shou),雕鑿(zao)簡(jian)潔流暢,棱線分(fen)明、吻部噘起,大嘴張開,雙目(mu)圓睜(zheng),神態逼真,朝(chao)向正南(nan)(nan)(nan)方7公(gong)里(li)(li)之遙的(de)鴨(ya)雞山(shan)(shan)(shan)。
城(cheng)(cheng)子(zi)山山城(cheng)(cheng)經中國社會科(ke)學院(yuan)、考古(gu)研究(jiu)所和(he)敖漢(han)旗(qi)聯合調查、測繪,認為此類山城(cheng)(cheng)是(shi)(shi)(shi)中國北(bei)方地區迄今為止面(mian)積(ji)大、保存完(wan)整,暴露遺跡清晰,結構復雜(za)的(de)(de)一處(chu),也是(shi)(shi)(shi)目前發現的(de)(de)東北(bei)地區夏家店下(xia)層(ceng)文化(hua)較大規模山城(cheng)(cheng),只有國家的(de)(de)力量才可完(wan)成(cheng)這一恢宏工程,城(cheng)(cheng)內石(shi)圈、方院(yuan)、密布(bu)的(de)(de)場面(mian),學者們認為是(shi)(shi)(shi)夏家店下(xia)層(ceng)文化(hua)中心(xin)性祭祀址(zhi)。對于(yu)研究(jiu)古(gu)代社會的(de)(de)演進(jin),國家和(he)城(cheng)(cheng)市的(de)(de)形成(cheng)、宗(zong)教信(xin)仰(yang)、社會變革均提供了(le)重(zhong)(zhong)要資料(liao)。2001年由國務院(yuan)公布(bu)為全(quan)國第五(wu)批重(zhong)(zhong)點文物保護(hu)單位(wei)。