石臺(tai)子山(shan)城(cheng)(cheng)(cheng)位于沈(shen)陽市區東(dong)北(bei)(bei)35公里輝山(shan)風(feng)景區內(nei)(nei)(nei)的(de)(de)(de)棋盤(pan)山(shan)水(shui)庫北(bei)(bei)岸,北(bei)(bei)鄰(lin)鐵嶺,東(dong)南與撫順相(xiang)望。山(shan)城(cheng)(cheng)(cheng)借助山(shan)體自(zi)然(ran)形(xing)(xing)(xing)勢(shi)人工修(xiu)筑而成,為一(yi)(yi)座(zuo)閉合式(shi)的(de)(de)(de)石壘山(shan)城(cheng)(cheng)(cheng),平面(mian)呈不規(gui)(gui)則(ze)的(de)(de)(de)三角形(xing)(xing)(xing),周長1384.1米(mi)(mi),環(huan)城(cheng)(cheng)(cheng)墻(qiang)(qiang)體一(yi)(yi)周共設有(you)10座(zuo)馬(ma)(ma)面(mian),4個(ge)城(cheng)(cheng)(cheng)門。山(shan)勢(shi)西高東(dong)低,南寬北(bei)(bei)窄,四(si)角相(xiang)對較高。山(shan)城(cheng)(cheng)(cheng)墻(qiang)(qiang)體斷面(mian)呈梯(ti)狀,內(nei)(nei)(nei)外(wai)墻(qiang)(qiang)面(mian)為形(xing)(xing)(xing)狀規(gui)(gui)整(zheng)的(de)(de)(de)楔形(xing)(xing)(xing)石塊砌(qi)(qi)筑,墻(qiang)(qiang)面(mian)里為棱形(xing)(xing)(xing)的(de)(de)(de)插(cha)石。里墻(qiang)(qiang)一(yi)(yi)周均有(you)夯土護(hu)坡向城(cheng)(cheng)(cheng)內(nei)(nei)(nei)緩延,個(ge)別(bie)處(chu)(chu)尚有(you)護(hu)坡石。墻(qiang)(qiang)體自(zi)下而上有(you)一(yi)(yi)定(ding)程度的(de)(de)(de)內(nei)(nei)(nei)收,墻(qiang)(qiang)體底寬6-7米(mi)(mi)不等,頂(ding)殘(can)寬5.6米(mi)(mi),殘(can)高最(zui)高處(chu)(chu)3.9米(mi)(mi)。10座(zuo)馬(ma)(ma)面(mian)之間相(xiang)距(ju)約60米(mi)(mi),馬(ma)(ma)面(mian)皆為方形(xing)(xing)(xing)或(huo)近長方形(xing)(xing)(xing)。4個(ge)城(cheng)(cheng)(cheng)門分別(bie)設筑在東(dong)、南、西、北(bei)(bei)四(si)面(mian),且門下皆有(you)城(cheng)(cheng)(cheng)內(nei)(nei)(nei)向外(wai)排水(shui)系統。在南門西側(ce)還發現一(yi)(yi)大涵洞(dong),洞(dong)口兩側(ce)用(yong)較大的(de)(de)(de)條石砌(qi)(qi)筑,高1.02米(mi)(mi),寬0.80米(mi)(mi)。城(cheng)(cheng)(cheng)址(zhi)內(nei)(nei)(nei)有(you)房址(zhi)、灰坑(keng),房址(zhi)皆為石砌(qi)(qi),灰坑(keng)形(xing)(xing)(xing)狀各異,圓形(xing)(xing)(xing)居多,另有(you)橢圓形(xing)(xing)(xing)及不規(gui)(gui)則(ze)長方形(xing)(xing)(xing)等。出土遺(yi)物有(you)陶器(qi)、鐵器(qi)、銅器(qi)、骨器(qi)和錢(qian)幣(bi)等。