Region
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Andes
1
Andes Region
40
Andhra Pradesh
1
Andizhon (Andizhon viloi͡ati, Uzbekistan)
1
Andorra
2
Angola
8
Animas River (Colo. and N.M.)
3
Animas River Watershed (Colo. and N.M.)
4
Ann Arbor
1
Annapolis
3
Anne Arundel County
1
Anniston
1
Antarctica
38
Antietam National Battlefield
2
Antietam National Battlefield (Md.)
1
Antiquities
1
Apache County
5
Apalachicola Bay
1
Apalachicola National Forest
1
Apalachicola River
1
Apalachicola River Watershed
3
Apostle Islands National Lakeshore (Wis.)
1
Appalachian Mountains, Southern
1
Appalachian Region
37
Appalachian Region, Southern
5
Appalachian Trail
3
Apple Valley
1
Arab countries
60
Arabia Mountain National Heritage Area (Ga.)
3
Arabian Peninsula
3
Arapaho National Forest (Colo.)
6
Arches National Park (Utah)
6
Arctic National Wildlife Refuge
43
Arctic National Wildlife Refuge (Alaska)
69
Arctic Ocean
8
Arctic regions
140
Argentina
84
Arizona
248
Arizona Strip
2
Arizona Trail (Ariz.)
1
Arkansas
64
Arkansas River
4
Arkansas River Valley
1
Arlington
17
Arlington (Tex.)
1
Arlington County
1
Armenia
16
Armenia (Republic)
86
Arolsen
1
Artesia
1
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