Region
Africa, East
5
Africa, West
2
Alaska
1
Amazon River Region
1
Amazon River Valley
1
Amazonas
1
Amazonas (Venezuela)
1
America
6
Andes
2
Antarctica
1
Atlantic Coast (North America)
1
Atlantic Ocean
1
Ayalán Cemetery Site
1
Ayalán Cemetery Site (Ecuador)
1
Barra do Corda
1
Biesterfeldt Site (N.D.)
1
Bolivia
1
Brazil
2
California
1
California, Gulf of
2
Caribbean Area
1
Caribbean Sea
1
Central America
1
Charles County
1
Charles County (Md.)
1
Colorado
1
Costa Rica
1
Dominica
2
Ecuador
4
Esmeraldas (Ecuador : Province)
1
Esmeraldas (Province)
1
Florida
2
French Polynesia
1
Galeta Point
1
Gouldsboro Bay
1
Great Basin
1
Great Plains
1
Guiana
1
Hamilton Inlet
1
Hamilton Inlet (N.L.)
1
Hawaii
1
Hellenic Trough
1
Indian River (River)
2
Indonesia
1
Jamaica
1
Juan Fernández Islands
1
Kimhae-gun
1
Kimhae-gun (Korea)
1
Korea (South)
1
Latin America
4
more ...