Region
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Cuba
2
Ecuador
2
Fort Pierre National Grassland
2
Fort Pierre National Grassland (S.D.)
2
Great Lakes (North America)
2
Guam
2
Guatemala
2
Himalaya Mountains Region
2
Hot Springs
2
Houston Region
2
Huron County
2
Illinois
2
India
2
Indonesia
2
Japan
2
Kansas
2
Kealia Pond National Wildlife Refuge
2
Kealia Pond National Wildlife Refuge (Hawaii)
2
Middle Atlantic States
2
Mississippi
2
Missouri River Valley
2
Nashville
2
New Hampshire
2
New Jersey
2
Oceania
2
Pacific Northwest
2
Peru
2
Philippines
2
Rocky Mountains
2
Salton Sea
2
Scotland
2
Seattle
2
Two Ponds National Wildlife Refuge
2
Two Ponds National Wildlife Refuge (Colo.)
2
United States Virgin Islands
2
Utah
2
Virginia
2
West Indies
2
Wisconsin
2
États-Unis
2
Acadia National Park
1
Acadia National Park (Me.)
1
Africa, North
1
Alberta
1
Alcona County
1
American Samoa
1
Apalachicola National Forest
1
Arctic National Wildlife Refuge (Alaska)
1
Aruba
1
Asia
1
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