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Daily Archives: September 6, 2021

DR. PATRICK’S POSTCARD ROADSIDE: Mammoth Cave vs. Great Onyx Cave

Postcards, UncategorizedBy SCASeptember 6, 2021

When Mammoth Cave National Park was established in 1941, Great Onyx Cave, three miles from the entrance to Mammoth Cave, was not included, its owners continuing to operate the show cave in competition with Mammoth.

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