Columbia subject headings:
Harvard subject headings:
Colorado River (Colo.-Mexico)--Regulation.
Dams--Environmental aspects--Arizona--Grand Canyon.
Glen Canyon Dam (Ariz.)
Rivers--Arizona--Grand Canyon--Regulation.
Princeton subject headings:
Dams--Environmental aspects--Arizona.
Glen Canyon Dam (Ariz.)--Environmental aspects.
Grand Canyon (Ariz.)
Rivers--Regulation--Economic aspects.
Stream conservation--Arizona.
Stream ecology--Arizona.
Water resources development--Environmental aspects--Arizona.