1985年(nian)發現。有(you)(you)新石器時代居住遺址和墓葬。出土有(you)(you)彩(cai)陶(tao)罐(guan)(guan)、彩(cai)陶(tao)瓶、石器等。陶(tao)器分(fen)為(wei)紅(hong)陶(tao)、彩(cai)陶(tao)和灰陶(tao)。其中,紅(hong)陶(tao)又分(fen)為(wei)泥質和夾(jia)砂兩種,紋(wen)(wen)(wen)(wen)飾(shi)有(you)(you)垂幛紋(wen)(wen)(wen)(wen)、鳥(niao)眼(yan)紋(wen)(wen)(wen)(wen)、圈點紋(wen)(wen)(wen)(wen)、燕尾紋(wen)(wen)(wen)(wen)、鳥(niao)羽紋(wen)(wen)(wen)(wen)、帶狀紋(wen)(wen)(wen)(wen)和網格(ge)紋(wen)(wen)(wen)(wen)等。彩(cai)陶(tao)施內外彩(cai)。遺址出土彩(cai)陶(tao)的(de)器型(xing)(xing)、質地(di)和彩(cai)繪花紋(wen)(wen)(wen)(wen)圖(tu)案,與廟底(di)溝類(lei)型(xing)(xing)、大地(di)灣類(lei)型(xing)(xing)、馬家(jia)(jia)窯類(lei)型(xing)(xing)同(tong)時期文物(wu)有(you)(you)其相同(tong)之處,也有(you)(you)不同(tong)之處,是馬家(jia)(jia)窯文化(hua)中的(de)一(yi)個新類(lei)型(xing)(xing)。另有(you)(you)齊家(jia)(jia)文化(hua)的(de)泥質紅(hong)陶(tao)和夾(jia)砂紅(hong)陶(tao)片(pian),紋(wen)(wen)(wen)(wen)飾(shi)有(you)(you)籃(lan)紋(wen)(wen)(wen)(wen)、繩紋(wen)(wen)(wen)(wen)、刻劃紋(wen)(wen)(wen)(wen),器形有(you)(you)高領罐(guan)(guan)、鼓腹(fu)折肩罐(guan)(guan)、盆(pen)、壺等。遺址范圍內還(huan)有(you)(you)唐疊州城址及烽火臺。
然鬧遺址(zhi)(zhi)是甘肅南部地區大型(xing)新石器時代(dai)遺址(zhi)(zhi),保存(cun)較好(hao),內涵豐富(fu),面(mian)積大,既有(you)居址(zhi)(zhi),又有(you)墓葬,對研究馬家窯文化的分布范圍(wei)、文化內涵以及演變發展具(ju)有(you)重要(yao)價(jia)值。