Region
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Portland
2
Québec (Province)
2
Sahara
2
San Diego
2
Saskatchewan
2
Scandinavia
2
Seattle
2
Serengeti National Park
2
Shark Bay (W.A.)
2
Solar system
2
Southeast Asia
2
Southwest, New
2
Sub-Saharan Africa
2
Taiwan
2
Tamil Nadu
2
Texas
2
Thailand
2
Toronto (Ont.)
2
Trinidad and Tobago
2
Turkey
2
Vietnam (Republic)
2
West End (London, England)
2
Wisconsin
2
Yucatán (State)
2
Yugoslavia
2
Accra
1
Accra (Ghana)
1
Adirondack Mountains
1
Aegean Sea Region
1
Africa South of the Sahara
1
Africa, Eastern
1
Africa, North
1
Africa, Northeast
1
Africa, Northern
1
Afrique
1
Alabama
1
Alameda County
1
Alameda County (Calif.)
1
Alberta
1
Algeria
1
Amboseli Game Reserve
1
Amboseli National Park (Kenya)
1
Americas
1
Andes Region
1
Appalachian Region
1
Appleton
1
Arctic National Wildlife Refuge
1
Arctic National Wildlife Refuge (Alaska)
1
Arkansas
1
Atlanta
1
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