Region
United States
20
Europe
16
Washington (State)
16
California
15
Louisiana
15
England
13
North America
12
Colorado
11
Great Basin
11
Mexico
11
Oregon
11
Arizona
10
Netherlands
10
Nevada
10
Northwest, Pacific
10
Japan
9
Finland
8
Indiana
8
New York (State)
8
Russia (Federation)
8
Utah
8
Alaska
7
Argentina
7
Atlantic Ocean
7
Egypt
7
Florida
7
France
7
Illinois
7
North Carolina
7
Ontario
7
Pennsylvania
7
Spain
7
Vincennes Region
7
Bahamas
6
China
6
Galapagos Islands
6
Georgia
6
Grand Canyon
6
Massachusetts
6
South Carolina
6
Texas
6
Alabama
5
Colombia
5
États-Unis
5
Grand Bassin
5
Mexico, Gulf of
5
Middle East
5
New Jersey
5
Sweden
5
Transverse Ranges
5
more ...