Region
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Antietam National Battlefield
2
Antietam National Battlefield (Md.)
1
Antigua and Barbuda
3
Antiquities
1
Apache County
6
Apache Tribe of Oklahoma
1
Apalachicola River
1
Apalachicola River Watershed
1
Appalachian Mountains, Southern
1
Appalachian Region
18
Appalachian Region, Southern
5
Appalachian Trail
1
Arab countries
35
Arabia Mountain National Heritage Area (Ga.)
3
Arabian Peninsula
3
Aragon
6
Aragon (Spain)
2
Aragón
1
Arapaho National Forest (Colo.)
6
Arches National Park (Utah)
4
Arctic Archipelago (Nunavut and N.W.T.)
1
Arctic National Wildlife Refuge
37
Arctic National Wildlife Refuge (Alaska)
42
Arctic Ocean
9
Arctic Regions
2
Arctic regions
24
Argentina
139
Arizona
169
Arizona Strip
2
Arizona Trail (Ariz.)
1
Arkansas
47
Arkansas River
1
Arlington
11
Arlington (Tex.)
1
Arlington County
1
Armenia
3
Armenia (Republic)
12
Art
1
Aruba
2
Arunāchal Pradesh
2
Ascension
2
Asheville
1
Asheville (N.C.)
1
Ashford (Conn.)
1
Ashur (Extinct city)
3
Asia
139
Asia, Central
11
Asie
1
Assiniboine and Sioux Tribes of the Fort Peck Indian Reservation, Montana
2
Assyria
7
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