Region
United States
13
England
6
Great Britain
5
France
4
California
3
Europe
3
Hawaii
3
North America
3
Tanzania
3
Africa
2
Alaska
2
America
2
Argentina
2
Australia
2
Boston
2
Boston (Mass.)
2
Chaco
2
Chaco (Argentina)
2
Colorado
2
Europe, Eastern
2
Germany
2
Great Plains
2
Greece
2
Italy
2
Japan
2
Massachusetts
2
Mexico
2
Middle East
2
Orange County
2
Orange County (Calif.)
2
Pacific Area
2
Pacific Ocean
2
Rome
2
Russia
2
Scotland
2
Serengeti National Park
2
Southern States
2
Soviet Union
2
Spain
2
Western countries
2
Aravaipa Canyon
1
Aravaipa Canyon (Ariz.)
1
Arizona
1
Black Rock
1
Black Rock (N.M.)
1
Brooklyn (New York, N.Y.)
1
Canada
1
Central America
1
Charlevoix Region
1
Charlevoix Region (Québec)
1
more ...