Columbia subject headings:
Athapascan Indians--History.
Fur trade--Canada, Northern--History.
Indians of North America--Canada, Northern--History.
Trading posts--Canada, Northern.
Trading posts.
Harvard subject headings:
Athapascan Indians--History.
Athapascan Indians.
Fur trade--Canada, Northern--History.
Indians of North America--Canada, Northern--History.
Trading posts--Canada, Northern--History.
Trading posts--Canada, Northern.
Princeton subject headings:
Athapascan Indians--History.
Athapascan Indians--Trading posts.
Fur trade--Canada, Northern--History.
Indians of North America--Canada, Northern--History.
Indians of North America--Canada, Northern--Trading posts.