Columbia subject headings:
National parks and reserves--United States.
Natural resources--United States--Law.
Reclamation of land--United States.
Harvard subject headings:
National parks and reserves--United States
Natural resources--Law and legislation--United States
Reclamation of land--United States
United States. Laws, etc. (U.S. code)
United States. National Park Service
Princeton subject headings:
National parks and reserves--United States.
Natural resources--Law and legislation--United States.
Reclamation of land--United States.
United States. Laws, etc. (U.S. code)
United States. National Park Service