Columbia subject headings:
Great Falls of the Potomac (Md. and Va.)
Riparian rights--United States.
Water rights--United States.
Harvard subject headings:
Great Falls of the Potomac (Md. and Va.)
Riparian rights--United States.
Water rights--United States
Princeton subject headings:
Great Falls of the Potomac (Md. and Va.)
Riparian rights--United States.
Water rights--United States.