1985年發現。有(you)(you)新(xin)石(shi)(shi)器(qi)時(shi)代(dai)居(ju)住遺址(zhi)(zhi)和(he)墓葬。出土有(you)(you)彩陶罐、彩陶瓶、石(shi)(shi)器(qi)等。陶器(qi)分(fen)為紅(hong)陶、彩陶和(he)灰陶。其中,紅(hong)陶又分(fen)為泥質和(he)夾砂兩種,紋(wen)(wen)(wen)(wen)飾(shi)有(you)(you)垂幛紋(wen)(wen)(wen)(wen)、鳥眼(yan)紋(wen)(wen)(wen)(wen)、圈點紋(wen)(wen)(wen)(wen)、燕(yan)尾紋(wen)(wen)(wen)(wen)、鳥羽紋(wen)(wen)(wen)(wen)、帶狀(zhuang)紋(wen)(wen)(wen)(wen)和(he)網(wang)格紋(wen)(wen)(wen)(wen)等。彩陶施內(nei)外彩。遺址(zhi)(zhi)出土彩陶的器(qi)型(xing)、質地和(he)彩繪花(hua)紋(wen)(wen)(wen)(wen)圖案,與廟底溝類(lei)型(xing)、大(da)地灣類(lei)型(xing)、馬家窯類(lei)型(xing)同(tong)時(shi)期(qi)文(wen)物有(you)(you)其相同(tong)之(zhi)處,也有(you)(you)不同(tong)之(zhi)處,是馬家窯文(wen)化(hua)中的一個新(xin)類(lei)型(xing)。另(ling)有(you)(you)齊家文(wen)化(hua)的泥質紅(hong)陶和(he)夾砂紅(hong)陶片,紋(wen)(wen)(wen)(wen)飾(shi)有(you)(you)籃紋(wen)(wen)(wen)(wen)、繩紋(wen)(wen)(wen)(wen)、刻(ke)劃紋(wen)(wen)(wen)(wen),器(qi)形有(you)(you)高(gao)領罐、鼓腹折肩(jian)罐、盆、壺等。遺址(zhi)(zhi)范圍內(nei)還有(you)(you)唐疊州城址(zhi)(zhi)及烽火臺。
然鬧遺(yi)址是(shi)甘(gan)肅(su)南部地(di)區大(da)型新石器時代遺(yi)址,保存較(jiao)好,內(nei)涵(han)豐富,面積大(da),既有(you)居(ju)址,又有(you)墓(mu)葬(zang),對研究馬家窯文化(hua)的分布(bu)范圍、文化(hua)內(nei)涵(han)以及演變發展具有(you)重要價值。