The main idea of this selection is
A how early archeological errors at Chaco Canyon have clouded the true history of the Ancestral Pueblo people who lived there.
B Chaco Canyon is an example of an American historic site that’s been harmed by tourism more than it’s been helped.
C the field of archaeology has shifted significantly over the past 200 years, and this has affected the rate at which artifacts are removed from Chaco Canyon.
D new technologies, preservation efforts, and changed attitudes about studying historic places have revealed much about Ancestral Pueblo life in Chaco Canyon.