Region
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Africa, West
1
Africa, Western
1
Afton
1
Afton Canyon
1
Afton Canyon (Calif.)
1
Agua Fria National Monument (Ariz.)
2
Aguadilla
1
Aiken County
1
Aitkin County
1
Ak Chin Reservation
1
Alabama
67
Alabama Hills
1
Alamance County
1
Alameda County
17
Alamo (Hidalgo County, Tex.)
2
Alamo Lake Region
2
Alamo Lake Region (Ariz.)
1
Alamogordo
1
Alamogordo (N.M.)
1
Alamosa County
8
Alamosa County (Colo.)
3
Alamosa River (Colo.)
2
Alaska
836
Alaska Maritime National Wildlife Refuge (Alaska)
1
Alaska Peninsula
6
Alaska Peninsula (Alaska)
1
Alaska Peninsula Region
5
Alaska Range
9
Alaska Range (Alaska)
2
Alaska, Gulf of
7
Alaska, Southcentral
1
Alaska, Southeast
3
Albania
6
Albany (Wis.)
1
Albany County
26
Albany County (N.Y.)
3
Alberta
3
Albion (Wis.)
1
Albuquerque
4
Albuquerque Metropolitan Area
1
Albuquerque Metropolitan Area (N.M.)
2
Albuquerque Region
5
Alcona County
1
Aldo Leopold Wilderness (N.M.)
1
Aldrich Mountains
1
Aleutian Basin
1
Aleutian Islands
4
Aleutian Range
1
Aleutian Trench
1
Alexander Archipelago
2
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