1985年發(fa)現。有(you)(you)新(xin)(xin)石器時(shi)代居住遺(yi)(yi)址和墓葬。出(chu)土有(you)(you)彩(cai)陶(tao)(tao)(tao)(tao)(tao)罐、彩(cai)陶(tao)(tao)(tao)(tao)(tao)瓶、石器等(deng)。陶(tao)(tao)(tao)(tao)(tao)器分為紅(hong)陶(tao)(tao)(tao)(tao)(tao)、彩(cai)陶(tao)(tao)(tao)(tao)(tao)和灰陶(tao)(tao)(tao)(tao)(tao)。其中,紅(hong)陶(tao)(tao)(tao)(tao)(tao)又分為泥質(zhi)和夾砂兩種,紋(wen)(wen)飾有(you)(you)垂幛紋(wen)(wen)、鳥眼紋(wen)(wen)、圈點紋(wen)(wen)、燕尾紋(wen)(wen)、鳥羽(yu)紋(wen)(wen)、帶狀紋(wen)(wen)和網格(ge)紋(wen)(wen)等(deng)。彩(cai)陶(tao)(tao)(tao)(tao)(tao)施內外彩(cai)。遺(yi)(yi)址出(chu)土彩(cai)陶(tao)(tao)(tao)(tao)(tao)的器型、質(zhi)地和彩(cai)繪花紋(wen)(wen)圖(tu)案(an),與廟底溝類(lei)型、大(da)地灣類(lei)型、馬家(jia)窯(yao)類(lei)型同(tong)時(shi)期文物有(you)(you)其相同(tong)之處,也(ye)有(you)(you)不同(tong)之處,是馬家(jia)窯(yao)文化中的一(yi)個新(xin)(xin)類(lei)型。另(ling)有(you)(you)齊家(jia)文化的泥質(zhi)紅(hong)陶(tao)(tao)(tao)(tao)(tao)和夾砂紅(hong)陶(tao)(tao)(tao)(tao)(tao)片,紋(wen)(wen)飾有(you)(you)籃紋(wen)(wen)、繩紋(wen)(wen)、刻劃(hua)紋(wen)(wen),器形有(you)(you)高領罐、鼓腹折肩罐、盆、壺等(deng)。遺(yi)(yi)址范圍內還有(you)(you)唐(tang)疊州城址及烽火臺。
然鬧遺址(zhi)(zhi)是(shi)甘肅南(nan)部地區大(da)型新石器(qi)時代遺址(zhi)(zhi),保存較好,內涵豐(feng)富,面積大(da),既有(you)居址(zhi)(zhi),又(you)有(you)墓(mu)葬,對研究馬家窯文(wen)化(hua)的分布范圍、文(wen)化(hua)內涵以及演變發(fa)展具有(you)重要價值(zhi)。