Ever been to Mammoth Cave National Park in Kentucky? Said to be the largest network of caves in the world, with over 400 miles of caves explored, thought to be another 600 miles of caves yet to be explored. Hard to show pictures because
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Ever been to Mammoth Cave National Park in Kentucky? Said to be the largest network of caves in the world, with over 400 miles of caves explored, thought to be another 600 miles of caves yet to be explored. Hard to show pictures because