Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Prehistoric Rock Art Sites in the Côa Valley and Siega Verde' has mentioned 'Cliff' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| In the 20th century, the construction of the Pocinho Dam and its associated reservoir likely resulted in the immersion of many rock cliff drawings. | WIKI |
| EDP continued to promote other methods of "saving" the prehistoric art (such as creating moulds or carving the panels from the cliff faces), while still promoting the continuation of the dam project. | WIKI |