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 'Chalcolithic' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| [3] Others, primarily anthropomorphic, date back to the Chalcolithic and Bronze Age. | WIKI |
| [6] By the 1990s, prospectors revealed a group of important Paleolithic, Neolithic and Chalcolithic carvings in the lower part of the Cxc3xb4a Valley, likely in November 1991 by Nelson Rabanda (articles were not published on this work until November 1994). | WIKI |