Region
Acadia National Park
1
Acadia National Park (Me.)
1
Africa
4
Africa, North
1
Alabama
2
Alaska
7
Alberta
1
Alcona County
1
America
9
American Samoa
1
Amérique du Nord
2
Antarctica
7
Apalachicola National Forest
1
Appalachian Region
3
Arctic National Wildlife Refuge
2
Arctic National Wildlife Refuge (Alaska)
1
Arctic regions
4
Arizona
2
Arkansas
3
Aruba
1
Asia
1
Asia, Central
1
Atlantic Coast
1
Atlantic Coast (N.C.)
1
Atlantic Ocean
1
Atlantic States
1
Australia
25
Azerbaijan
1
Barro Colorado Island
1
Bayfield County
1
Beale Air Force Base
1
Beale Air Force Base (Calif.)
1
Behavior
1
Belize
1
Big Cypress National Preserve
1
Big Cypress National Preserve (Fla.)
1
Big Oak Tree State Park, Missouri
1
Bird Island
2
Bird Island (Antarctica)
1
Bird Island, Antarctic regions
1
Bismarck Archipelago
1
Blue Ridge Mountains Region
1
Bodega Bay
1
Bogotá
1
Bonaire
1
Bosque Seco de Guánica
1
Boston
1
Botswana
2
Brazil
4
Breton National Wildlife Refuge (La.)
1
more ...