Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Monumental Earthworks of Poverty Point' has mentioned 'River' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| For example, a disproportionate number of projectile points were made from raw materials naturally occurring in the Ouachita and Ozark Mountains and in the Ohio and Tennessee River valleys. | WIKI |