輝(hui)河(he)發源于大興安嶺中(zhong)部西(xi)北側(ce)的叢山密(mi)林中(zhong),由二十(shi)幾(ji)條小河(he)匯集于烏拉吉呼(hu),折(zhe)向(xiang)西(xi)北緩(huan)緩(huan)流入(ru)呼(hu)倫(lun)貝爾(er)草原,把大草原分為兩部分。其左側(ce)被稱(cheng)為巴(ba)爾(er)虎草原,右(you)側(ce)則(ze)是鄂(e)溫克草原。輝(hui)河(he)河(he)道開闊平坦,河(he)水彎(wan)彎(wan)曲曲流至(zhi)寶力格東(dong)又折(zhe)向(xiang)東(dong)北,匯入(ru)伊敏河(he)。輝(hui)河(he)水壩距河(he)口14公里,屬于鄂(e)溫克族自治旗錫(xi)尼河(he)西(xi)蘇(su)木(鄉)境(jing)內。北距海拉爾(er)市33公里。
遺(yi)(yi)址位于輝(hui)河(he)水壩,海拔高度約(yue)640米,分布范圍約(yue)30多萬平方米,地(di)(di)貌部位明確(que),地(di)(di)層清楚(chu),屬于原(yuan)地(di)(di)埋(mai)藏類型,遺(yi)(yi)物保(bao)存新鮮,無(wu)分選(xuan)現象。遺(yi)(yi)址文化層為灰黑(hei)色細沙層,厚(hou)可達1米,石料主要采(cai)自遺(yi)(yi)址以東10公里左右(you)的伊敏河(he)岸(an)的砂礫石層。1975年,黑(hei)龍(long)江省文物普查(cha)(cha)工作隊曾(ceng)對(dui)輝(hui)河(he)右(you)岸(an)做過文物調查(cha)(cha),先(xian)后發(fa)現細石器遺(yi)(yi)址12處,其(qi)中(zhong)有代表性的即輝(hui)河(he)水壩北側河(he)岸(an)邊及(ji)臺地(di)(di)上(shang)遺(yi)(yi)址。
掘(jue)地點選在(zai)輝河水壩(ba)北(bei)側(ce)320米(mi)(mi)(mi)處(chu),靠河崖開1×2米(mi)(mi)(mi)探方(fang)一(yi)個,共出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)遺(yi)物(wu)(wu)(wu)314件(jian)(jian)(jian)(jian)(jian)(jian)。這里的土(tu)(tu)(tu)(tu)(tu)(tu)質(zhi)(zhi)單一(yi),均為(wei)(wei)(wei)(wei)細(xi)(xi)(xi)沙(sha)土(tu)(tu)(tu)(tu)(tu)(tu)壤(rang)。只(zhi)能(neng)依靠出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)遺(yi)物(wu)(wu)(wu)大(da)致(zhi)區分為(wei)(wei)(wei)(wei)六(liu)層(ceng)(ceng)(ceng)(ceng)。一(yi)層(ceng)(ceng)(ceng)(ceng),深18厘(li)米(mi)(mi)(mi),為(wei)(wei)(wei)(wei)地表(biao)土(tu)(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng),不(bu)見遺(yi)物(wu)(wu)(wu)。第(di)二層(ceng)(ceng)(ceng)(ceng),深18~30厘(li)米(mi)(mi)(mi),土(tu)(tu)(tu)(tu)(tu)(tu)質(zhi)(zhi)為(wei)(wei)(wei)(wei)黑(hei)褐色(se)細(xi)(xi)(xi)沙(sha),含有炭(tan)粒和油跡。出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)細(xi)(xi)(xi)石(shi)器(qi)、石(shi)片(pian)(pian)(pian)(pian)等(deng)27件(jian)(jian)(jian)(jian)(jian)(jian),骨片(pian)(pian)(pian)(pian)8件(jian)(jian)(jian)(jian)(jian)(jian),鐵(tie)片(pian)(pian)(pian)(pian)1件(jian)(jian)(jian)(jian)(jian)(jian)。第(di)三層(ceng)(ceng)(ceng)(ceng),深30~55厘(li)米(mi)(mi)(mi),土(tu)(tu)(tu)(tu)(tu)(tu)質(zhi)(zhi)與二層(ceng)(ceng)(ceng)(ceng)無(wu)(wu)明顯(xian)(xian)變(bian)化,仍為(wei)(wei)(wei)(wei)黑(hei)褐色(se)細(xi)(xi)(xi)沙(sha)土(tu)(tu)(tu)(tu)(tu)(tu)。出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)遺(yi)物(wu)(wu)(wu)豐(feng)富,多達174件(jian)(jian)(jian)(jian)(jian)(jian)。其中(zhong)細(xi)(xi)(xi)石(shi)器(qi)、石(shi)片(pian)(pian)(pian)(pian)、石(shi)核及石(shi)葉共122件(jian)(jian)(jian)(jian)(jian)(jian),陶(tao)(tao)片(pian)(pian)(pian)(pian)23件(jian)(jian)(jian)(jian)(jian)(jian),碎骨器(qi)殘(can)片(pian)(pian)(pian)(pian)28件(jian)(jian)(jian)(jian)(jian)(jian),鐵(tie)器(qi)殘(can)片(pian)(pian)(pian)(pian)1件(jian)(jian)(jian)(jian)(jian)(jian)。第(di)四層(ceng)(ceng)(ceng)(ceng),深55~90厘(li)米(mi)(mi)(mi),土(tu)(tu)(tu)(tu)(tu)(tu)質(zhi)(zhi)由黑(hei)褐色(se)漸(jian)變(bian)為(wei)(wei)(wei)(wei)黃色(se),仍為(wei)(wei)(wei)(wei)細(xi)(xi)(xi)沙(sha)土(tu)(tu)(tu)(tu)(tu)(tu)。發(fa)掘(jue)面積縮小(xiao)為(wei)(wei)(wei)(wei)1×1米(mi)(mi)(mi),出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)遺(yi)物(wu)(wu)(wu)因此減少(shao)到(dao)80件(jian)(jian)(jian)(jian)(jian)(jian)。其中(zhong)細(xi)(xi)(xi)石(shi)器(qi)41件(jian)(jian)(jian)(jian)(jian)(jian),陶(tao)(tao)片(pian)(pian)(pian)(pian)13件(jian)(jian)(jian)(jian)(jian)(jian),骨貝殘(can)片(pian)(pian)(pian)(pian)3件(jian)(jian)(jian)(jian)(jian)(jian)。從(cong)陶(tao)(tao)片(pian)(pian)(pian)(pian)的紋(wen)飾、陶(tao)(tao)質(zhi)(zhi)、工藝等(deng)分析,文化內(nei)涵明顯(xian)(xian)不(bu)同于第(di)三層(ceng)(ceng)(ceng)(ceng),但地層(ceng)(ceng)(ceng)(ceng)無(wu)(wu)明顯(xian)(xian)界線。第(di)五層(ceng)(ceng)(ceng)(ceng),深90~110厘(li)米(mi)(mi)(mi),為(wei)(wei)(wei)(wei)黃沙(sha)土(tu)(tu)(tu)(tu)(tu)(tu),出(chu)(chu)(chu)(chu)土(tu)(tu)(tu)(tu)(tu)(tu)細(xi)(xi)(xi)石(shi)器(qi)12件(jian)(jian)(jian)(jian)(jian)(jian),碎骨(魚貝類)殘(can)片(pian)(pian)(pian)(pian)12塊。第(di)六(liu)層(ceng)(ceng)(ceng)(ceng),深110厘(li)米(mi)(mi)(mi)以下,為(wei)(wei)(wei)(wei)原生(sheng)土(tu)(tu)(tu)(tu)(tu)(tu)層(ceng)(ceng)(ceng)(ceng),土(tu)(tu)(tu)(tu)(tu)(tu)質(zhi)(zhi)為(wei)(wei)(wei)(wei)純凈黃色(se)細(xi)(xi)(xi)沙(sha),不(bu)見遺(yi)物(wu)(wu)(wu)。
呼倫(lun)貝爾市文(wen)(wen)物(wu)工(gong)作者在多年(nian)的試掘和文(wen)(wen)物(wu)普(pu)查中發現輝河(he)水壩遺址存有大(da)量細石(shi)器(qi)和陶(tao)器(qi)片(pian)。此次挖掘共挖了(le)(le)四(si)個探方,總(zong)面積105平方米(mi),共出土文(wen)(wen)物(wu)2000多件。有石(shi)葉、石(shi)片(pian)、陶(tao)片(pian)、石(shi)核等(deng),還發現了(le)(le)兩了(le)(le)兩處灰堆,從灰堆中出土了(le)(le)大(da)量的動物(wu)骨骼。