Subjects
- Lighthouses--Conservation and restoration--Michigan--Mackinac, Straits of.1
- Lighthouses--Conservation and restoration--Michigan.1
- Lighthouses--Great Lakes (North America)--History.1
- Lighthouses--Great Lakes (North America)--Maps.1
- Lighthouses--Great Lakes (North America)--Study and teaching.1
- Lighthouses--Law and legislation--Michigan.1
- Lighthouses--Law and legislation.1
- Lighthouses--Michigan--Big Sable Point.1
- Lighthouses--Michigan--Cooper Harbor.1
- Lighthouses--Michigan--History.1
- Lighthouses--Michigan--Mackinac, Straits of.1
- Lighthouses--Michigan--Pictorial works.1
- Lighthouses--Michigan--Sturgeon Point.1
- Lighthouses--Michigan--Thunder Bay Island.1
- Lighthouses--Study and teaching.1
- McGulpin Point Historic Site (Mich.)--History.1
- McGulpin Point Lighthouse (Mich.)--History.1
- Mission Point Lighthouse (Mich.)--History.1
- Round Island Light House.1
- Saint Helena Lighthouse (Mich.)--History.1