Region
Africa
9
Africa, Eastern
1
Africa, Southern
2
Africa, West
1
Alabama
2
Alta Verapaz
1
Amazon River Region
2
America
2
Arctic regions
1
Australia
15
Bolivia
1
California
7
Cameroon
1
Canada
2
Caribbean Area
1
Cascade-Siskiyou National Monument
1
Cascade-Siskiyou National Monument (Or.)
1
Chile
1
Colombia
1
Colorado River (Colo.-Mexico)
1
Costa Rica
4
Cumberland Gap National Historical Park
1
Denmark
1
Developing countries
7
Earth (Planet)
1
East (U.S.)
1
East Asia
1
Egypt
1
Ethiopia
1
Europe
1
Europe, Eastern
2
European Union countries
2
Everglades
2
Finland
1
Florida
2
Florida Bay
2
Gamo Highlands
1
Great Plains
1
Great Smoky Mountains National Park (N.C. and Tenn.)
1
Guatemala
3
Haryana
1
Hawaii
1
Himalaya Mountains Region
1
Hispaniola
1
Horn, Cape
1
Horn, Cape (Chile)
1
India
9
Indonesia
1
Jamaica
1
Japan
1
more ...