貴陽永樂湖國家水(shui)利旅游(you)風景區,位于貴陽市永樂鄉(xiang)東面與(yu)龍里(li)縣交界處的石筍(sun)溝水(shui)庫(ku)(ku)內(nei)。水(shui)庫(ku)(ku)是小型天(tian)然水(shui)庫(ku)(ku),因水(shui)庫(ku)(ku)中有兩根石筍(sun)柱而得名。
景(jing)(jing)區(qu)(qu)距貴(gui)陽市中(zhong)心17公里,景(jing)(jing)區(qu)(qu)總(zong)面積(ji)5.5萬平方公里。景(jing)(jing)區(qu)(qu)內的(de)(de)(de)多種自然(ran)景(jing)(jing)觀十分(fen)引人入(ru)勝,主要特(te)(te)色有喀斯特(te)(te)地(di)質景(jing)(jing)觀:石塘峽、佛光巖、大風洞、石筍峰等;云海景(jing)(jing)觀:位(wei)于貴(gui)陽市較高(gao)海拔1334m的(de)(de)(de)蟒蛇嶺,氣候溫和濕(shi)潤、云霧(wu)繚繞,晨(chen)曦日出(chu)、夕陽晚霞(xia)盡(jin)收(shou)眼(yan)底;森林植(zhi)物(wu)景(jing)(jing)觀:區(qu)(qu)內植(zhi)物(wu)總(zong)類繁(fan)多,常(chang)綠(lv)落葉、針葉、闊葉交相輝映、春綠(lv)夏濃、秋艷冬(dong)白;湖(hu)(hu)泊景(jing)(jing)觀:整個湖(hu)(hu)區(qu)(qu)由(you)于貴(gui)州高(gao)原喀斯特(te)(te)地(di)貌,使湖(hu)(hu)面形(xing)成一(yi)(yi)條“中(zhong)國龍(long)”的(de)(de)(de)形(xing)狀,永樂湖(hu)(hu)內有兩根57米(mi)(mi)高(gao)的(de)(de)(de)天然(ran)石柱(zhu)(zhu),形(xing)似竹筍,堪稱(cheng)景(jing)(jing)區(qu)(qu)內的(de)(de)(de)標志性景(jing)(jing)觀。一(yi)(yi)根在右岸湖(hu)(hu)崖畔,一(yi)(yi)根在湖(hu)(hu)中(zhong)央,湖(hu)(hu)中(zhong)央的(de)(de)(de)石柱(zhu)(zhu)高(gao)于湖(hu)(hu)面大約37米(mi)(mi),橫寬約10米(mi)(mi),縱(zong)長約30米(mi)(mi),造型獨特(te)(te)。
永(yong)(yong)樂(le)湖(hu)位于貴陽市(shi)(shi)南明區永(yong)(yong)樂(le)鄉羊角村(cun)東(dong)北(bei)隅。貴陽市(shi)(shi)近(jin)郊,是一(yi)(yi)個多民(min)(min)族聚(ju)居鄉,其中(zhong)(zhong)少數民(min)(min)族約(yue)0.32萬(wan)人,主要是布(bu)依族、苗族。永(yong)(yong)樂(le)鄉氣(qi)候溫和宜人,夏無(wu)酷暑,冬無(wu)嚴寒,雨量(liang)充沛,有高(gao)(gao)原性氣(qi)候特點。永(yong)(yong)樂(le)湖(hu)(石(shi)(shi)(shi)筍(sun)溝(gou)水庫(ku)),系一(yi)(yi)九(jiu)七九(jiu)年年底為解(jie)決永(yong)(yong)樂(le)鄉中(zhong)(zhong)、東(dong)部近(jin)6000畝(mu)農(nong)田灌(guan)溉而興建的(de)水利設(she)(she)(she)施。庫(ku)區地處一(yi)(yi)緩傾(qing)斜小(xiao)背斜上(shang),由三疊系下統大(da)(da)冶組薄層(ceng)至中(zhong)(zhong)厚(hou)層(ceng)狀(zhuang)碳酸鹽巖(yan)(yan)間夾屑碎巖(yan)(yan)相間互層(ceng)組成(cheng),小(xiao)斷層(ceng)及節理(li)裂(lie)隙發育,偶見溶洞(dong)。大(da)(da)壩(ba)(ba)(ba)(ba)筑于石(shi)(shi)(shi)筍(sun)溝(gou)溪流(liu)的(de)上(shang)游(you)峽(xia)谷(gu)(gu)上(shang),為漿(jiang)砌石(shi)(shi)(shi)雙(shuang)曲拱壩(ba)(ba)(ba)(ba),壩(ba)(ba)(ba)(ba)高(gao)(gao)42.56m,壩(ba)(ba)(ba)(ba)頂高(gao)(gao)程(cheng)1216.56m,壩(ba)(ba)(ba)(ba)弧長160m,壩(ba)(ba)(ba)(ba)頂寬(kuan)(kuan)4m,設(she)(she)(she)雙(shuang)向砼制(zhi)護(hu)欄高(gao)(gao)1.20m,大(da)(da)壩(ba)(ba)(ba)(ba)宏偉壯觀(guan);壩(ba)(ba)(ba)(ba)頂中(zhong)(zhong)部設(she)(she)(she)四孔跨度各4.6m挑流(liu)式溢(yi)洪孔,總寬(kuan)(kuan)18.4m,溢(yi)頂高(gao)(gao)程(cheng)1214.80m,設(she)(she)(she)計(ji)泄洪水量(liang)11.5 m3/s,當泄洪溢(yi)流(liu)時(shi),將形成(cheng)垂高(gao)(gao)近(jin)40m的(de)人工飛瀑,氣(qi)勢(shi)磅礴壯觀(guan);設(she)(she)(she)計(ji)正常高(gao)(gao)水1214.80m,有效庫(ku)容514.8萬(wan)m3,最(zui)高(gao)(gao)洪水位1215.22m,死水位1195.40m。設(she)(she)(she)計(ji)灌(guan)溉面(mian)(mian)積(ji)5968畝(mu),由于灌(guan)區大(da)(da)面(mian)(mian)積(ji)田土改種蔬菜(cai),用水量(liang)減少,目前實際受灌(guan)面(mian)(mian)積(ji)只有3000畝(mu)左(zuo)右。石(shi)(shi)(shi)筍(sun)溝(gou)峽(xia)谷(gu)(gu),大(da)(da)體呈(cheng)北(bei)東(dong)-南西向蜿蜒于貴陽市(shi)(shi)與龍里縣(xian)交(jiao)界的(de)山原丘(qiu)嶺(ling)中(zhong)(zhong),永(yong)(yong)樂(le)湖(hu)庫(ku)區長約(yue)2km左(zuo)右,湖(hu)肚寬(kuan)(kuan)闊(kuo),湖(hu)尾(wei)狹窄(zhai),庫(ku)壩(ba)(ba)(ba)(ba)后為近(jin)5km長的(de)深(shen)(shen)切峽(xia)谷(gu)(gu),谷(gu)(gu)岸陡崖絕壁連綿(mian)如屏,有永(yong)(yong)樂(le)石(shi)(shi)(shi)塘(tang)小(xiao)三峽(xia)之(zhi)稱(cheng),岸坡(po)兩側(ce)藤蔓叢木密布(bu),溪水源于溶洞(dong)巖(yan)(yan)泉(quan),清澈(che)純凈(jing),谷(gu)(gu)中(zhong)(zhong)多奇峰殘柱,谷(gu)(gu)深(shen)(shen)流(liu)急,峽(xia)谷(gu)(gu)、跌水、深(shen)(shen)潭、巖(yan)(yan)泉(quan)時(shi)有所(suo)見,左(zuo)岸丘(qiu)坡(po)寬(kuan)(kuan)槽內喬林(lin)(lin)森茂(mao),林(lin)(lin)濤聲(sheng)(sheng)聲(sheng)(sheng),拱壩(ba)(ba)(ba)(ba)宏偉,高(gao)(gao)峽(xia)平湖(hu),綠波蕩漾,精(jing)巧旖旎的(de)湖(hu)光(guang)山色,自然(ran)天成(cheng)的(de)生態景(jing)觀(guan),是永(yong)(yong)樂(le)湖(hu)旅游(you)資源的(de)主要特色。主要景(jing)觀(guan)有:永(yong)(yong)樂(le)湖(hu)、大(da)(da)壩(ba)(ba)(ba)(ba)、擎天石(shi)(shi)(shi)筍(sun)、蟒(mang)蛇嶺(ling)、龜石(shi)(shi)(shi)峰、石(shi)(shi)(shi)塘(tang)峽(xia)谷(gu)(gu)、大(da)(da)風洞(dong)、山原森林(lin)(lin)、民(min)(min)族村(cun)寨、永(yong)(yong)樂(le)堡。