Region
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Great Lakes (North America)
3
Iowa
3
Latin America
3
New Zealand
3
North Carolina
3
Ontario
3
Québec (Province)
3
Saint George
3
Tonto National Forest (Ariz.)
3
Africa, West
2
Ajusco
2
America
2
American Samoa
2
Antarctica
2
Arctic National Wildlife Refuge
2
Arctic National Wildlife Refuge (Alaska)
2
Bogotá
2
Cameroon
2
Canaan Valley National Wildlife Refuge
2
Canaan Valley National Wildlife Refuge (W. Va.)
2
Canada
2
Charles M. Russell National Wildlife Refuge (Mont.)
2
Columbia River Watershed
2
Congo (Democratic Republic)
2
Deer Flat National Wildlife Refuge (Idaho and Or.)
2
Detroit River International Wildlife Refuge (Mich.)
2
Europe
2
Former Soviet republics
2
Gila National Forest
2
Gila National Forest (N.M.)
2
Glacial Ridge National Wildlife Refuge
2
Glacial Ridge National Wildlife Refuge (Minn.)
2
Great Basin
2
Indonesia
2
Lechuguilla Cave (N.M.)
2
Lee Metcalf National Wildlife Refuge
2
Lee Metcalf National Wildlife Refuge (Mont.)
2
Maryland
2
Mekong River Watershed
2
Mexico City
2
Nevada
2
New England
2
New South Wales
2
Norfolk
2
North Dakota
2
North-West Province
2
North-West Province (Cameroon)
2
Northwest, Pacific
2
Ohio River
2
Oregon, Western
2
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