Columbia subject headings:
Boats and boating--Powell, Lake (Utah and Ariz.)
Glen Canyon National Recreation Area (Utah and Ariz.)
Personal watercraft.
Powell, Lake (Utah and Ariz.)--Recreational use.
Harvard subject headings:
Boats and boating--Powell, Lake (Utah and Ariz.)
Glen Canyon National Recreation Area (Utah and Ariz.)
Personal watercraft.
Powell, Lake (Utah and Ariz.)--Recreational use.
Princeton subject headings: