Region
China
9
India
3
Asia
2
Great Lakes (North America)
2
Poland
2
Africa
1
Algeria
1
Appalachian Region
1
Black Sea
1
Caspian Sea
1
Dakhla Oasis
1
Danube River
1
Egypt
1
Everglades
1
Everglades (Fla.)
1
Florida
1
France
1
Ganges River (India and Bangladesh)
1
Ganges River Valley (India and Bangladesh)
1
Latin America
1
Lebanon
1
Llobregat River
1
Llobregat River (Spain)
1
Llobregat River Watershed (Spain)
1
Moldova
1
Nile River
1
Nile River Watershed
1
North Sea
1
Rhine River
1
Rhine River Watershed
1
Seine River Watershed
1
Seine River Watershed (France)
1
South Africa
1
Spain
1
Sungari River
1
United States
1
Yamuna River
1
Yamuna River (India)
1