安徽省铜陵市的天井湖位于五松山脚下,天井湖公园内。湖面阔八十公顷,有山峦环之,湖光山色,相映成趣。两条曲曲折折的长堤将湖分为东湖、南湖、北湖等三湖,所缺西湖,古人戏称移至杭州。此湖上有水源灌入,下与长江贯通,故水质清澈。南湖湖心有一岛,岛上有一口井,井水终年高于湖面两米多,湖水涨则井水涨,湖水落则井水落,为一奇观,人称可诠“井水不犯河水”之说。相传井水由天而来,供过往神仙小憩品茶之用,故名“天井”。后人于井上筑阁以护之,名为“通天阁”。天井湖位于市区主干道长江西路北侧,以堤山自然分割为东湖、南湖和北湖,三湖水面通连,距铜官山约5公里。湖中有一口“上通天,下通海”的井,名曰天井。湖因井、园以湖而得名。天井是坐落于天井湖公园的一大奇观,因地下涌泉,终年高出湖水面2米左右。AnhuiprovinceTonglingCitySongshanLakeislocatedinthecourtyardfivefeet,patioLakepark.Thewidthofeightyhectares,aringofmountains,alandscapeoflakesandmountains,gainbycontrast.TwotwistsandturnsalongthelakeisdividedintoEastLake,SouthLake,lakeandotherlakes,thelackofWestLake,theancientscalledtoHangzhou.Thelakehasawatersource,andtheYangtzeRiver,sothewaterqualityisclear.NanhuLakewithanisland.Ontheislandtherearewells,wellsthroughouttheyearabovethelakemorethantwometers,lakeupwellsup,fallingwateriswellwater,isaspectacle,knownascanQuan"jingshuibufanheshui"said.Accordingtolegend,thewaterfromthesky,forthepastfairytearestinthecourtyard,named"".Lateronthewellstosupportthecourtbuilding,calledthe"Towerofbabel".Patiolakeislocatedintheurbantrunkroad,theYangtzeRiveronthenorthsideofWest,thedikeMountainNaturalsegmentationfortheEastLake,SouthLakeandNorthLakeandthreelakeswaterTonglianfromTongguanshanabout5km.Thelakehasa"onthesky,underthesea"wells,thenamepatio.Lakebecauseofthewell,theparkisnamedafterthelake.ThecourtyardisagreatspectaclelocatedonthepatioLakePark,duetoundergroundsprings,at2metersabovethelakesurface.