六工城(cheng)(cheng)(cheng)(cheng)遺址城(cheng)(cheng)(cheng)(cheng)墻(qiang)底寬4米,頂(ding)寬2.8米,高7.5米,夯土版筑,夯層厚約(yue)0.16米。南(nan)(nan)(nan)﹑西﹑北三面(mian)各(ge)有城(cheng)(cheng)(cheng)(cheng)門及(ji)甕城(cheng)(cheng)(cheng)(cheng),城(cheng)(cheng)(cheng)(cheng)墻(qiang)呈(cheng)直線,唯以東城(cheng)(cheng)(cheng)(cheng)墻(qiang)連續四(si)次內折,南(nan)(nan)(nan)、西、北墻(qiang)保(bao)存(cun)相(xiang)對(dui)較好,外城(cheng)(cheng)(cheng)(cheng)東墻(qiang)倒塌嚴(yan)重(zhong)。全(quan)城(cheng)(cheng)(cheng)(cheng)共(gong)有內外角墩7個(ge)、馬面(mian)8個(ge)。大城(cheng)(cheng)(cheng)(cheng)東北連接一座小城(cheng)(cheng)(cheng)(cheng)障,平面(mian)呈(cheng)方形,南(nan)(nan)(nan)面(mian)正中設門,東西長76米,南(nan)(nan)(nan)北寬82米,面(mian)積6232平方米,夯土版筑,底寬8.3米,頂(ding)寬4.9米,高10米。除東北角外側剝落較為嚴(yan)重(zhong)外,其它墻(qiang)體保(bao)存(cun)完整。
六工城(cheng)(cheng)(cheng)遺址是(shi)絲綢之(zhi)路上兩(liang)漢以來一處重要(yao)的城(cheng)(cheng)(cheng)址,初步考證(zheng)大城(cheng)(cheng)(cheng)當為(wei)“宜(yi)禾縣”,小城(cheng)(cheng)(cheng)當為(wei)“昆侖障”之(zhi)故址。始建于(yu)漢代,城(cheng)(cheng)(cheng)外有農田水利(li)遺跡(ji),證(zheng)實當時(shi)宜(yi)禾城(cheng)(cheng)(cheng)既是(shi)軍(jun)事要(yao)塞,又是(shi)農業屯墾區,為(wei)研究絲綢之(zhi)路發展(zhan)和各(ge)民族交往有重要(yao)的價值。