Columbia subject headings:
Alaska--Description and travel.
British Columbia--Description and travel.
California--Description and travel.
Kamchatka Peninsula (Russia)--Description and travel.
Harvard subject headings:
Alaska--Description and travel
British Columbia--Description and travel
California--Description and travel.
Kamchatka--Description and travel.
Princeton subject headings:
Alaska--Description and travel.
British Columbia--Description and travel.
California--Description and travel.
Kamchatka Peninsula (Russia)--Description and travel.