Geography
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Delaware
7 results
Maryland
7 results
Nevada
7 results
Ontario
7 results
Brazil
6 results
Indiana
6 results
Niger
6 results
Rhode Island
6 results
Canada
5 results
England
5 results
Honduras
5 results
Mississippi River
5 results
Philippines
5 results
Puerto Rico
5 results
Africa, West
4 results
Connecticut River
4 results
Great Britain
4 results
New Hampshire
4 results
New Zealand
4 results
North America
4 results
West (U.S.)
4 results
Asia
3 results
Californie
3 results
Erie, Lake
3 results
India
3 results
Maine
3 results
Mexico
3 results
Northwest, Pacific
3 results
Orange County (Calif.)
3 results
South Asia
3 results
Southwest, New
3 results
Vermont
3 results
Africa, Central
2 results
Austria
2 results
Cape Verde
2 results
Central America
2 results
Chile
2 results
Colorado River (Colo.-Mexico)
2 results
Colorado River Watershed (Colo.-Mexico)
2 results
Coon Creek Watershed (Monroe County-Vernon County)
2 results
Coon Creek Watershed (Monroe County-Vernon County, Wis.)
2 results
Des Plaines River (Wis. and Ill.)
2 results
Ethiopia
2 results
Europe
2 results
Grandes Plaines
2 results
Great Lakes (North America)
2 results
Harrison County
2 results
Kenya
2 results
Middle Atlantic States
2 results
Milam County
2 results
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