Region
United States
13
Colorado
5
Florida
4
Tennessee
4
California
3
India
3
Oregon
3
Brazil
2
Florida, South
2
Illinois
2
Millington Region
2
Oklahoma
2
Puerto Rico
2
Texas
2
Utah
2
Washington (State)
2
West (U.S.)
2
Wisconsin
2
Africa
1
Albuquerque
1
Anoka County
1
Arkansas
1
Asia
1
Atlantic Coast
1
Atlantic Coast (U.S.)
1
Australia
1
Belém
1
Belém (Brazil)
1
Carraízo Reservoir Watershed
1
Carraízo Reservoir Watershed (P.R.)
1
Chad
1
Cheyenne
1
Columbia Plateau
1
Columbia River Watershed
1
Contra Costa County
1
Culpeper
1
Denver Metropolitan Area
1
Denver Region
1
DuPage County
1
Enid
1
Eustis
1
Fort Carson (Colo.)
1
Great Plains
1
Japan
1
Kansas
1
Las Animas County
1
Louisiana
1
Madison
1
Malawi
1
Massachusetts
1
more ...