Region
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Korean Demilitarized Zone (Korea)
1
Latin America
4
Madagascar
3
Madrean Archipelago
1
Malay Archipelago
2
Malaysia
1
Marsh-Billings-Rockefeller National Historical Park (Vt.)
1
Mediterranean Region
1
Mexico
2
Neuse River Watershed
1
Neuse River Watershed (N.C.)
1
New Zealand
2
North America
6
North Carolina
1
Northeastern States
1
Northwest, Pacific
4
Oregon
2
Pacific and Mountain States
1
Pantanal
1
Peru
1
Rocky Mountains
1
Serengeti National Park (Tanzania)
1
Serengeti National Park Region
2
Similipal Biosphere Reserve
1
Southern States
1
Southwestern States
2
Syria
1
Tanzania
2
Texas
2
Togian Islands
1
Tropics
2
Tumut (N.S.W.) Region
1
United States
50
Uttarakhand
3
Victoria
1
Washington (State)
1
Wyoming
1