Columbia subject headings:
Archaeological surveying--Michigan--Isle Royale National Park.
Excavations (Archaeology)--Michigan--Isle Royale National Park.
Isle Royale National Park (Mich.)--Antiquities.
Shipwrecks--Michigan--Isle Royale National Park.
Underwater archaeology--Michigan--Isle Royale National Park.
Harvard subject headings:
Isle Royale National Park (Mich.)--Antiquities.
Shipwrecks--Michigan--Isle Royale National Park.
Underwater archaeology--Michigan--Isle Royale National Park
Princeton subject headings:
Archaeological surveying--Michigan--Isle Royale National Park.
Excavations (Archaeology)--Michigan--Isle Royale National Park.
Isle Royale National Park (Mich.)--Antiquities.
Shipwrecks--Michigan--Isle Royale National Park.
Underwater archaeology--Michigan--Isle Royale National Park.