Region
United States
40
California
21
Australia
15
North America
15
Arizona
10
China
10
Great Britain
10
Turkey
10
Colorado
9
Aegean Islands (Greece and Turkey)
8
Joshua Tree National Park
8
Joshua Tree National Park (Calif.)
8
West (U.S.)
7
Florida
6
Illinois
6
Washington (State)
6
Canada, Eastern
5
New England
5
Oregon
5
Québec (Province)
5
Southern States
5
Africa
4
Alaska
4
Brazil
4
Europe
4
French Polynesia
4
Idaho
4
Kentucky
4
Labrador
4
New York (State)
4
Newfoundland and Labrador
4
Texas
4
Algeria
3
Arabian Peninsula
3
British Isles
3
Canada
3
Colombia
3
East (U.S.)
3
England
3
India
3
Japan
3
Mexico
3
Middle West
3
Minnesota
3
Missouri
3
Morocco
3
Nord-du-Québec
3
Northeastern States
3
Sierra Nevada (Calif. and Nev.)
3
South Carolina
3
more ...