Region
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Alameda National Wildlife Refuge (Calif.)
1
Alamo Dam (Ariz.)
1
Alamo River
1
Alamogordo
2
Alamosa
22
Alamosa (Colo.)
1
Alamosa County
15
Alamosa County (Colo.)
2
Alamosa National Wildlife Refuge
1
Alamosa River Watershed
1
Alamosa River Watershed (Colo.)
4
Alamosa-Monte Vista National Wildlife Refuge Complex
1
Alan Henry, Lake
1
Alaska
509
Alaska Peninsula
4
Alaska Peninsula (Alaska)
1
Alaska Peninsula National Wildlife Refuge
4
Alaska Peninsula National Wildlife Refuge (Alaska)
6
Alaska Range
2
Alaska Range (Alaska)
1
Alaska, Gulf of
22
Alaska, Southcentral
3
Alaska, Southeast
9
Albania
9
Albany
3
Albany County
3
Albert Pike Recreation Area
1
Albert Pike Recreation Area (Ark.)
1
Alberta
3
Alboran Sea
1
Albuquerque
2
Albuquerque Basin
4
Albuquerque Basin (N.M.)
1
Albuquerque Metropolitan Area (N.M.)
1
Albuquerque Region
3
Alcatraz Island
1
Alcatraz Island (Calif.)
1
Aleutian Basin
3
Aleutian Islands
14
Aleutian Islands (Alaska)
1
Alexander County (Ill.)
1
Alexander Valley
1
Alexandria
1
Algeria
7
Allegheny Mountains
1
Allegheny National Forest
5
Allegheny National Forest (Pa.)
1
Allegheny Portage Railroad National Historic Site (Pa.)
2
Allegheny River (Pa. and N.Y.)
1
Allen Parish
1
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