The surface of Mammoth ... Tour. If you plan to stay longer, consider the fairly strenuous four-mile Grand Avenue Tour (there are three steep hills, each nearly 90 feet high). To enjoy the caves ...

In 1842, Croghan summoned Bishop to Locust Grove, his Louisville mansion, to draw a map ... a tour today. It's unclear how Bishop viewed his job. Gorin said that he called Mammoth Cave “grand ...

MAMMOTH CAVE ... Some people say one early explorer is still roaming the cave, even though he died there long ago. "Sometimes people hear things, feel things or see things they can't explain," said ...