Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Carlsbad Caverns National Park' has mentioned 'Sea' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| An estimated 250 million years ago, the area surrounding Carlsbad Caverns National Park served as the coastline for an inland sea. | WIKI |
| Present in the sea was a plethora of marine life, whose remains formed a reef. | WIKI |