Columbia subject headings:
Assiniboine River (Sask. and Man.)
Canada--Discovery and exploration.
Geology--Northwest, Canadian.
Manitoba--Description and travel.
Northwest, Canadian--Description and travel.
Saskatchewan River (Sask. and Man.)
Harvard subject headings:
Assiniboine River (Sask. and Man.)
Assiniboine River.
Canada--Discovery and exploration.
Discoveries in geography--Canada.
Geology--Northwest, Canadian.
Manitoba--Description and travel.
Northwest, Canadian--Description and travel.
Saskatchewan River.
Princeton subject headings:
Assiniboine River.
Canada--Exploring expeditions.
Geology--Northwest, Canadian.
Manitoba--Description and travel.
Northwest, Canadian--Description and travel.
Saskatchewan River.