Mammoth Cave National Park, a UNESCO World Heritage Site and International Biosphere Reserve located in south central Kentucky, recently made headlines for adding 6 miles to the world’s largest cave system, which is now at 426 explored miles.
Source: Road Trips & Recipes: Hidden surprises in Horse Cave, Kentucky
Categories: United States of America
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Aizudin Zainal
IU7. UNL.
All About World Heritage Sites 