Geography
United States
497 results
Texas
30 results
California
20 results
Alaska
19 results
Florida
10 results
Nevada
10 results
North America
10 results
Great Britain
8 results
China
7 results
South Carolina
7 results
Canada
6 results
West (U.S.)
6 results
Africa
5 results
Idaho
5 results
New Mexico
5 results
Europe
4 results
Everglades
4 results
India
4 results
Menominee County (Wis.)
4 results
Menominee Indian Reservation (Wis.)
4 results
Mexico
4 results
Sacramento Metropolitan Area (Calif.)
4 results
Atlantic Coast (U.S.)
3 results
Australia
3 results
Ciudad Juárez
3 results
Colorado
3 results
Germany
3 results
Mississippi River
3 results
Missouri
3 results
Montana
3 results
New York (State)
3 results
West Virginia
3 results
Afghanistan
2 results
Appalachian Basin
2 results
Atlantic Ocean
2 results
El Paso Region
2 results
Erfurt (2004)
2 results
European Union countries
2 results
Great Plains
2 results
Greece
2 results
Hawaii
2 results
High Plains (U.S.)
2 results
High Plains Aquifer
2 results
Islamic countries
2 results
Little Blackwater River Watershed
2 results
Louisiana
2 results
Maryland
2 results
Massachusetts
2 results
Middle West
2 results
New Jersey
2 results
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