- Southern States -- Discovery and exploration -- Spanish -- Juvenile literature
- Africa, West -- Discovery and exploration -- British -- Juvenile literature
- West (U.S.) -- Discovery and exploration -- Cartoons and comics
- Grand Canyon (Ariz.) -- Discovery and exploration -- Cartoons and comics
- America -- Discovery and exploration -- Sources
- America -- Discovery and exploration -- French
- West (U.S.) -- Discovery and exploration -- Juvenile literature
- North Pole -- Discovery and exploration
- North America -- Discovery and exploration -- Comic books, strips, etc
- New France -- Discovery and exploration -- French -- Juvenile literature
- America -- Discovery and exploration -- Environmental aspects
- Northwest Passage -- Discovery and exploration -- Drama
- Oceania -- Discovery and exploration -- British
- Southwest, New -- Discovery and exploration
- North Atlantic Ocean -- Discovery and exploration -- Cartoons and comics
- West (U.S.) -- Discovery and exploration -- Spanish
- North America -- Discovery and exploration -- Norse -- Juvenile literature
- Greenland -- Discovery and exploration -- Norse
- Mexico -- Discovery and exploration -- Spanish
- Northeast Passage -- Discovery and exploration -- British
- North Pole -- Discovery and exploration -- Juvenile literature
- Wrangel Island (Russia) -- Discovery and exploration
- America -- Discovery and exploration -- British
- Extrasolar planets + Discovery and exploration -- Juvenile fiction
- Mosquitia (Nicaragua and Honduras) -- Discovery and exploration
- Grand Canyon (Ariz.) -- Discovery and exploration
- Kentucky -- Discovery and exploration -- Juvenile literature
- Arctic regions -- Discovery and exploration -- Juvenile literature
- Amazon River Region -- Discovery and exploration -- Juvenile literature
- Oceania -- Discovery and exploration
- Colorado River (Colo.-Mexico) -- Discovery and exploration
- America -- Discovery and exploration -- Juvenile literature
- Grand Canyon (Ariz.) -- Discovery and exploration -- Comic books, strips, etc
- Canada -- Discovery and exploration -- Norse
- Africa, West -- Discovery and exploration
- Pacific Area -- Discovery and exploration -- British
- America -- Discovery and exploration -- British -- Juvenile literature
- North America -- Discovery and exploration -- Norse -- Cartoons and comics
- West (U.S.) -- Discovery and exploration
- West (U.S.) -- Discovery and exploration -- Study and teaching -- Activity programs -- Juvenile literature
- America -- Discovery and exploration -- English -- Juvenile literature
- New France -- Discovery and exploration
- North America -- Discovery and exploration -- Norse
- Congo River -- Discovery and exploration -- Juvenile literature
- America -- Discovery and exploration -- Spanish -- Fiction
- Greenland -- Discovery and exploration -- British
- Colorado River (Colo.-Mexico) -- Discovery and exploration -- Comic books, strips, etc
- Southwest, New -- Discovery and exploration -- Spanish
- America -- Discovery and exploration -- Economic aspects
- America -- Discovery and exploration -- Pre-Columbian -- Juvenile literature