Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Chaco Culture' has mentioned 'UNESCO World Heritage Site' in the following places:

Occurrence Sentence	Text Source
Comprising a UNESCO World Heritage Site located in the arid and sparsely populated Four Corners region, the Chacoan cultural sites are fragile xe2x80x93 concerns of erosion caused by tourists have led to the closure of Fajada Butte to the public.	WIKI