| Answer | Crossword Clue |
|---|---|
| KENTUCKY | Home of Mammoth Cave |
| LIMESTONES | Mammoth Cave rocks |
| ECHO | Mammoth Cave river |
| LIMESTONE | Rock in Mammoth Cave. |
| ONYX | Stone seen in Mammoth Cave National Park |
| KNIGHTAUEL | Authors who collaborated on "The Mammoth Lassie Hunters Come Home"? |
