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The Ellison Cave System Boasts Two Of The Deepest Freefall Pits In The United StatesCaves are one of nature’s most incredible creations. Whether it is a small cave just large enough to crawl in (or, in the ...
Designated by the U.S. Congress in 1941 as a national park, Mammoth Cave National Park is managed under the authority of the Organic Act of August 25, 1916 which established the United States National ...
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