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Topic: 50 Years Ago, Cavers Connected Mammoth Cave and Flint Ridge (Read 49 times) previous topic - next topic

50 Years Ago, Cavers Connected Mammoth Cave and Flint Ridge

50 Years Ago, Cavers Connected Mammoth Cave and Flint Ridge

[html]The half-century anniversary marks the connection that established Mammoth Cave as the longest cave in the world.[/html]

Source: 50 Years Ago, Cavers Connected Mammoth Cave and Flint Ridge (http://ht**://www.discovermagazine.c**/planet-earth/50-years-ago-cavers-connected-mammoth-cave-and-flint-ridge)