全城(cheng)(cheng)(cheng)是一(yi)座400×400平方米(mi)的(de)(de)方形古城(cheng)(cheng)(cheng)址。城(cheng)(cheng)(cheng)墻四角正處在東(dong)南西北方位線上。殘高4-5米(mi)底寬(kuan)15-20米(mi),城(cheng)(cheng)(cheng)之南北各一(yi)城(cheng)(cheng)(cheng)門(men)。古城(cheng)(cheng)(cheng)內西北角建有90×90平方米(mi)的(de)(de)正方形小城(cheng)(cheng)(cheng)(居民稱之為(wei)馬圈),東(dong)開門(men),高處達3米(mi)多(duo),底寬(kuan)5米(mi)。在城(cheng)(cheng)(cheng)內拾到大量(liang)戰國、秦漢時(shi)代的(de)(de)陶(tao)片、貨幣、兵器(qi)、建筑構(gou)件等(deng)。史料記載(zai),此(ci)城(cheng)(cheng)(cheng)乃為(wei)戰國東(dong)漢時(shi)代的(de)(de)古城(cheng)(cheng)(cheng),形制保存完好。土(tu)城(cheng)(cheng)(cheng)子這個地區名也由(you)此(ci)城(cheng)(cheng)(cheng)而命之。
土(tu)(tu)城(cheng)子古(gu)城(cheng)由自治(zhi)區文(wen)物保(bao)(bao)護(hu)單(dan)位(wei)升級文(wen)物保(bao)(bao)護(hu)單(dan)位(wei)。2013年5月(yue)3日,中華人民(min)共和國(guo)(guo)國(guo)(guo)務院公布(bu)第七批國(guo)(guo)家文(wen)物保(bao)(bao)護(hu)單(dan)位(wei),其(qi)中土(tu)(tu)城(cheng)子古(gu)城(cheng)榜上。