城子(zi)山(shan)(shan)(shan)(shan)(shan)山(shan)(shan)(shan)(shan)(shan)城位于敖漢(han)旗薩(sa)力巴鄉哈(ha)拉溝(gou)村東(dong)南4公里(li)(li)的(de)(de)東(dong)山(shan)(shan)(shan)(shan)(shan)上,與瑪尼罕(han)鄉交界處。因山(shan)(shan)(shan)(shan)(shan)之(zhi)頂部有石砌圍(wei)墻如(ru)城,故名(ming)“城子(zi)山(shan)(shan)(shan)(shan)(shan)”,山(shan)(shan)(shan)(shan)(shan)城之(zhi)西(xi)北3公里(li)(li)處是(shi)薩(sa)仁諾(nuo)爾月(yue)芽湖旅游(you)區,東(dong)北10公里(li)(li)是(shi)遼代降圣(sheng)州佛塔,南與旗政(zheng)府所在地——新惠鎮僅30公里(li)(li)。其鄰近山(shan)(shan)(shan)(shan)(shan)頭環繞錯落有致,如(ru)眾星拱月(yue)般的(de)(de)遺(yi)址(zhi),以城子(zi)山(shan)(shan)(shan)(shan)(shan)為(wei)中心,形成了一個(ge)15平方公里(li)(li)的(de)(de)人文和山(shan)(shan)(shan)(shan)(shan)水風光旅游(you)區。
城(cheng)子山(shan)(shan)(shan)山(shan)(shan)(shan)城(cheng)為橢圓(yuan)長(chang)(chang)(chang)方(fang)形(xing),平(ping)(ping)(ping)面(mian)(mian)呈不規則的(de)“亞(ya)”字形(xing)。城(cheng)北(bei)、東、西(xi)三面(mian)(mian)略(lve)呈圓(yuan)形(xing),南(nan)側(ce)略(lve)呈長(chang)(chang)(chang)方(fang)形(xing),城(cheng)頂地勢較平(ping)(ping)(ping),西(xi)北(bei)略(lve)高,東南(nan)略(lve)低,主(zhu)(zhu)梁總長(chang)(chang)(chang)2.2公里,呈西(xi)北(bei)至東南(nan)走向,西(xi)側(ce)有(you)7道(dao)山(shan)(shan)(shan)梁,東側(ce)有(you)3道(dao)山(shan)(shan)(shan)梁均與(yu)主(zhu)(zhu)梁相(xiang)接,最寬(kuan)約3公里,山(shan)(shan)(shan)頂主(zhu)(zhu)峰的(de)中(zhong)心城(cheng)址(zhi)總面(mian)(mian)積達15萬平(ping)(ping)(ping)方(fang)米(mi),山(shan)(shan)(shan)城(cheng)的(de)四周砌(qi)筑(zhu)著石(shi)圍墻,并有(you)石(shi)砌(qi)護坡(po),全城(cheng)設有(you)9門(men),石(shi)墻周長(chang)(chang)(chang)1310米(mi),寬(kuan)2米(mi)。從(cong)城(cheng)內平(ping)(ping)(ping)面(mian)(mian)布局和地表(biao)石(shi)砌(qi)遺跡看,可分(fen)為6個(ge)區(qu)(qu),即中(zhong)心區(qu)(qu)、東區(qu)(qu)、北(bei)區(qu)(qu)、西(xi)區(qu)(qu)、南(nan)區(qu)(qu)、東南(nan)區(qu)(qu),區(qu)(qu)與(yu)區(qu)(qu)之(zhi)間又有(you)石(shi)墻相(xiang)隔,以(yi)門(men)道(dao)相(xiang)通出入,其中(zhong)主(zhu)(zhu)墻內側(ce)6個(ge)區(qu)(qu)共(gong)有(you)圓(yuan)形(xing)石(shi)砌(qi)建筑(zhu)228個(ge),主(zhu)(zhu)墻外(wai)側(ce)分(fen)布4個(ge),共(gong)計232個(ge)。在城(cheng)北(bei),東均發(fa)現(xian)厲(li)石(shi)群、磨光圓(yuan)窩石(shi)塊。城(cheng)西(xi)南(nan)發(fa)現(xian)一巨型石(shi)雕(diao)豬首,雕(diao)鑿簡潔(jie)流(liu)暢,棱(leng)線分(fen)明、吻部噘(jue)起,大嘴張開,雙(shuang)目圓(yuan)睜,神態逼真,朝向正南(nan)方(fang)7公里之(zhi)遙的(de)鴨雞山(shan)(shan)(shan)。
城(cheng)子山山城(cheng)經中(zhong)國社(she)會(hui)科學(xue)院、考(kao)古研(yan)(yan)究所和敖漢旗聯合調查、測繪,認(ren)為(wei)(wei)此類山城(cheng)是中(zhong)國北方地區(qu)迄今(jin)為(wei)(wei)止面(mian)積大、保存完整,暴(bao)露遺跡清晰(xi),結(jie)構復雜(za)的一處(chu),也(ye)是目前(qian)發現的東北地區(qu)夏家(jia)店下層文(wen)化較(jiao)大規模山城(cheng),只有國家(jia)的力(li)量才可完成這一恢宏工(gong)程,城(cheng)內石圈、方院、密布的場面(mian),學(xue)者(zhe)們認(ren)為(wei)(wei)是夏家(jia)店下層文(wen)化中(zhong)心性祭祀(si)址。對于研(yan)(yan)究古代(dai)社(she)會(hui)的演進,國家(jia)和城(cheng)市的形(xing)成、宗教信仰、社(she)會(hui)變革均提供了重(zhong)要資(zi)料。2001年由(you)國務院公布為(wei)(wei)全國第五批重(zhong)點文(wen)物保護單位。