Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Monumental Earthworks of Poverty Point' has mentioned 'Historic site' in the following places:
Occurrence Sentence Text Source
This article is about the U.S. National Monument and Louisiana state historic site in the lower Mississippi valley.
The 402-acre (163 ha) property now operated as the Poverty Point State Historic Site[5] contains "the largest and most complex Late Archaic earthwork occupation and ceremonial site yet found in North America".
The current boundaries of the property correspond to those of the Poverty Point State Historic Site: they include most of the elements that make up this monumental complex and the visual and functional relationship between them.