InHenan,China,youwillfindlocalgeothermalanomalycalled"Bingbingbei"orthe back ofthe ice.All regionsof Chinahaveanormalseasonal changes,the residents in thearea ofwesternLiaoningProvince, China,has aconstantwarmtemperature.Butwhensummercame, and thestartof thismiraculousphenomenon.Whenthe temperaturereachesa temperature of 30degreesCelsiusand the sunshineswithbright,large-scalechangesoccur,and the temperatureatone meterbelow thesoilreached-12 degreesCelsius,so thesoilfreezesandall thewaterturns to ice.