Located in west-central Kentucky, what is the name of the world's longest cave system?
Answer Mammoth Cave National Park
Mammoth Cave National Park, located in Kentucky, is the world's longest cave system with almost 400 miles of documented passageways, about double the length of Mexico's Sac Atun underwater cave.
Asked by Vasilii Kulev · Last updated 4 years ago · 323 views · SOURCE
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