1985年發現。有(you)(you)新(xin)(xin)石(shi)器(qi)時代(dai)居住遺(yi)址和(he)(he)墓葬。出(chu)土有(you)(you)彩(cai)(cai)陶罐、彩(cai)(cai)陶瓶、石(shi)器(qi)等。陶器(qi)分為(wei)(wei)紅陶、彩(cai)(cai)陶和(he)(he)灰陶。其(qi)中,紅陶又分為(wei)(wei)泥質(zhi)和(he)(he)夾砂(sha)兩種,紋(wen)(wen)(wen)(wen)飾有(you)(you)垂(chui)幛紋(wen)(wen)(wen)(wen)、鳥眼紋(wen)(wen)(wen)(wen)、圈點紋(wen)(wen)(wen)(wen)、燕尾紋(wen)(wen)(wen)(wen)、鳥羽紋(wen)(wen)(wen)(wen)、帶狀紋(wen)(wen)(wen)(wen)和(he)(he)網格紋(wen)(wen)(wen)(wen)等。彩(cai)(cai)陶施內外彩(cai)(cai)。遺(yi)址出(chu)土彩(cai)(cai)陶的器(qi)型(xing)、質(zhi)地(di)和(he)(he)彩(cai)(cai)繪花紋(wen)(wen)(wen)(wen)圖(tu)案,與廟底(di)溝類型(xing)、大地(di)灣類型(xing)、馬家窯類型(xing)同(tong)時期文物有(you)(you)其(qi)相(xiang)同(tong)之(zhi)(zhi)處,也有(you)(you)不同(tong)之(zhi)(zhi)處,是馬家窯文化中的一個新(xin)(xin)類型(xing)。另有(you)(you)齊(qi)家文化的泥質(zhi)紅陶和(he)(he)夾砂(sha)紅陶片,紋(wen)(wen)(wen)(wen)飾有(you)(you)籃紋(wen)(wen)(wen)(wen)、繩紋(wen)(wen)(wen)(wen)、刻劃紋(wen)(wen)(wen)(wen),器(qi)形有(you)(you)高領罐、鼓腹(fu)折肩罐、盆、壺等。遺(yi)址范圍內還有(you)(you)唐疊州(zhou)城址及烽火(huo)臺。
然鬧遺址(zhi)(zhi)是甘肅南部地區大型(xing)新石器時代遺址(zhi)(zhi),保(bao)存(cun)較好,內(nei)涵豐(feng)富,面(mian)積大,既有(you)居(ju)址(zhi)(zhi),又有(you)墓葬(zang),對研究(jiu)馬家(jia)窯(yao)文化(hua)的分布(bu)范圍、文化(hua)內(nei)涵以(yi)及(ji)演(yan)變(bian)發展具(ju)有(you)重要價值。