Why does this US DOI manuscript on archaeological sites have blacked-out text?
The gps coordinates or other similar information is withheld for some sensitive archeological sites to try to minimize vandalism and other issues such as unauthorized &quot;collectors&quot;. For example, there is a prehistoric rock quarry not too far from me in New York State, whose exact location is not published.
This seems to be the situation in the paper you cite. Some sites are culturally sensitive. Some are scientifically important. In the age of four wheel off-road vehicles it is too easy to find, contaminate, and even destroy such sites.