八仙洞位於河南省淅川縣馬蹬鎮境內，地處丹江口水庫東岸。八仙洞是一處喀斯特地貌，形成於寒武紀，距今大概有兩億多年的歷史。相傳有八位仙人曾在此修煉而得名。八仙洞的地質地貌兼中國北方溶洞和南方溶洞的特點於一身，既有北方溶洞的神秀的特點，又有南方溶洞高達之特點。 [1]
參考資料
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