六工城(cheng)(cheng)(cheng)遺址城(cheng)(cheng)(cheng)墻底寬(kuan)4米(mi),頂寬(kuan)2.8米(mi),高7.5米(mi),夯土(tu)版筑,夯層厚約0.16米(mi)。南(nan)﹑西(xi)﹑北(bei)三面(mian)各有城(cheng)(cheng)(cheng)門及(ji)甕(weng)城(cheng)(cheng)(cheng),城(cheng)(cheng)(cheng)墻呈(cheng)直(zhi)線,唯以東(dong)(dong)(dong)城(cheng)(cheng)(cheng)墻連續四(si)次(ci)內折,南(nan)、西(xi)、北(bei)墻保存(cun)相對(dui)較(jiao)好,外(wai)城(cheng)(cheng)(cheng)東(dong)(dong)(dong)墻倒塌嚴(yan)重。全城(cheng)(cheng)(cheng)共(gong)有內外(wai)角墩7個、馬(ma)面(mian)8個。大城(cheng)(cheng)(cheng)東(dong)(dong)(dong)北(bei)連接(jie)一座小城(cheng)(cheng)(cheng)障(zhang),平(ping)面(mian)呈(cheng)方形(xing),南(nan)面(mian)正中設門,東(dong)(dong)(dong)西(xi)長76米(mi),南(nan)北(bei)寬(kuan)82米(mi),面(mian)積6232平(ping)方米(mi),夯土(tu)版筑,底寬(kuan)8.3米(mi),頂寬(kuan)4.9米(mi),高10米(mi)。除(chu)東(dong)(dong)(dong)北(bei)角外(wai)側剝落較(jiao)為(wei)嚴(yan)重外(wai),其它墻體保存(cun)完整。
六(liu)工城遺(yi)址是絲綢之(zhi)路(lu)上兩漢以來(lai)一處重要的城址,初步考證(zheng)(zheng)大城當(dang)為“宜禾縣”,小城當(dang)為“昆侖障”之(zhi)故(gu)址。始建于漢代,城外有農田水利遺(yi)跡,證(zheng)(zheng)實當(dang)時宜禾城既是軍事(shi)要塞,又是農業(ye)屯墾區(qu),為研究絲綢之(zhi)路(lu)發展和各民族交往有重要的價值(zhi)。