Columbia subject headings:
Harvard subject headings:
Fort Michilimackinac (Mackinaw City, Mich.)
Fort Michilimackinac (Mackinaw City, Mich.)--Antiquities.
Industrial archaeology--Michigan--Mackinaw City.
Michigan--Antiquities
Nails and spikes--Analysis.
Nails and spikes--Michigan--Mackinaw City.
Princeton subject headings:
Fort Michilimackinac (Mackinaw City, Mich.)--Antiquities.
Industrial archaeology--Michigan--Mackinaw City.
Nails and spikes--Michigan--Mackinaw City.