石(shi)臺子山(shan)(shan)城(cheng)位于沈陽(yang)市區東(dong)北(bei)35公里輝山(shan)(shan)風景(jing)區內(nei)的(de)(de)棋(qi)盤(pan)山(shan)(shan)水庫北(bei)岸,北(bei)鄰鐵(tie)嶺,東(dong)南(nan)與(yu)撫順相(xiang)望。山(shan)(shan)城(cheng)借(jie)助山(shan)(shan)體(ti)自然(ran)形(xing)(xing)(xing)勢(shi)人工(gong)修筑(zhu)而成,為一座閉合式的(de)(de)石(shi)壘山(shan)(shan)城(cheng),平面(mian)呈不規則(ze)的(de)(de)三角形(xing)(xing)(xing),周(zhou)長(chang)1384.1米(mi)(mi),環(huan)城(cheng)墻(qiang)(qiang)體(ti)一周(zhou)共設有(you)10座馬(ma)面(mian),4個城(cheng)門(men)(men)。山(shan)(shan)勢(shi)西(xi)高(gao)東(dong)低(di),南(nan)寬北(bei)窄,四角相(xiang)對較(jiao)高(gao)。山(shan)(shan)城(cheng)墻(qiang)(qiang)體(ti)斷面(mian)呈梯狀,內(nei)外(wai)墻(qiang)(qiang)面(mian)為形(xing)(xing)(xing)狀規整(zheng)的(de)(de)楔形(xing)(xing)(xing)石(shi)塊砌(qi)(qi)筑(zhu),墻(qiang)(qiang)面(mian)里為棱形(xing)(xing)(xing)的(de)(de)插石(shi)。里墻(qiang)(qiang)一周(zhou)均有(you)夯土護坡向(xiang)城(cheng)內(nei)緩(huan)延,個別處(chu)尚有(you)護坡石(shi)。墻(qiang)(qiang)體(ti)自下而上有(you)一定程度的(de)(de)內(nei)收(shou),墻(qiang)(qiang)體(ti)底寬6-7米(mi)(mi)不等(deng),頂殘寬5.6米(mi)(mi),殘高(gao)最(zui)高(gao)處(chu)3.9米(mi)(mi)。10座馬(ma)面(mian)之(zhi)間相(xiang)距約60米(mi)(mi),馬(ma)面(mian)皆(jie)為方(fang)形(xing)(xing)(xing)或近長(chang)方(fang)形(xing)(xing)(xing)。4個城(cheng)門(men)(men)分別設筑(zhu)在東(dong)、南(nan)、西(xi)、北(bei)四面(mian),且(qie)門(men)(men)下皆(jie)有(you)城(cheng)內(nei)向(xiang)外(wai)排水系統(tong)。在南(nan)門(men)(men)西(xi)側還發現(xian)一大涵洞(dong),洞(dong)口兩側用較(jiao)大的(de)(de)條石(shi)砌(qi)(qi)筑(zhu),高(gao)1.02米(mi)(mi),寬0.80米(mi)(mi)。城(cheng)址內(nei)有(you)房址、灰坑,房址皆(jie)為石(shi)砌(qi)(qi),灰坑形(xing)(xing)(xing)狀各(ge)異(yi),圓(yuan)形(xing)(xing)(xing)居多,另有(you)橢圓(yuan)形(xing)(xing)(xing)及(ji)不規則(ze)長(chang)方(fang)形(xing)(xing)(xing)等(deng)。出土遺物有(you)陶(tao)器、鐵(tie)器、銅器、骨(gu)器和錢幣等(deng)。