Columbia subject headings:
Great Lakes Region (North America)--Discovery and exploration--Early works to 1800.
Hennepin, Louis, active 17th century.
La Salle, Robert Cavelier, sieur de, 1643-1687.
Mississippi River Valley--Discovery and exploration--Early works to 1800.
Harvard subject headings:
Great Lakes Region (North America)--Discovery and exploration--Early works to 1800.
Hennepin, Louis, active 17th century
La Salle, Robert Cavelier, sieur de, 1643-1687
Mississippi River Valley--Discovery and exploration--Early works to 1800.
Princeton subject headings: