Columbia subject headings:
Wilderness area users--West (U.S.)--Attitudes--Congresses.
Wilderness areas--Recreational use--West (U.S.)--Congresses.
Wilderness areas--West (U.S.)--Management--Congresses.
Harvard subject headings:
Wilderness area users--West (U.S.)--Attitudes--Congresses.
Wilderness areas--Recreational use--West (U.S.)--Congresses.
Wilderness areas--West (U.S.)--Management--Congresses.
Wilderness areas--West (U.S.)--Recreational use--Congresses.
Princeton subject headings:
Wilderness area users--West (U.S.)--Attitudes--Congresses.
Wilderness areas--West (U.S.)--Management--Congresses.
Wilderness areas--West (U.S.)--Recreational use--Congresses.