Columbia subject headings:
America--Discovery and exploration--Pre-Columbian--Maps.
America--Discovery and exploration--Pre-Columbian.
Cartography--History.
Maps.
Harvard subject headings:
America--Discovery and exploration--Pre-Columbian--Maps.
America--Discovery and exploration--Pre-Columbian.
Cartography--History
Princeton subject headings:
Atlantic Ocean--Maps.
Cartography--History.
Early maps.