Columbia subject headings:
Chesapeake Bay Region (Md. and Va.)--Surveys.
Navy-yards and naval stations--Virginia.
Harvard subject headings:
Chesapeake Bay Region (Md. and Va.)--Surveys.
Navy-yards and naval stations--Virginia.
Princeton subject headings:
Chesapeake Bay Region (Md. and Va.)--Surveys.
Navy-yards and naval stations--United States--Virginia.