Region
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Australia
19
Austria
1
Azerbaijan
1
Baltimore Metropolitan Area
1
Bangladesh
6
Barrow Canyon
1
Beardstown (Ill.)
1
Beaufort Sea
3
Beaufort Sea Coast (Alaska)
1
Beijing
1
Beijing (China)
1
Belarus
1
Belgium
3
Bengal
1
Bering Sea
2
Bering Sea Coast
1
Berlin
2
Big Lost River Watershed
1
Bighorn Canyon National Recreation Area (Mont. and Wyo.)
1
Birmingham Metropolitan Area
1
Black Hills National Forest (S.D. and Wyo.)
1
Bolivia
6
Bombay
1
Boston
2
Boston (Mass.)
1
Boston Metropolitan Area
1
Botswana
1
Brazil
12
Brazil, Northeast
1
Bridgeport
1
Bridgeport (Conn.)
1
Bristol
1
Bristol (Conn.)
1
Buenos Aires Metropolitan Area
1
Burkina Faso
3
Burma
7
Burundi
4
Cali
1
California
67
California, Southern
2
Cambodia
1
Cambridge (England)
2
Cameroon
3
Canada
56
Canal Zone
1
Cape Cod
1
Caribbean Area
40
Caribe, Area del
1
Carlin
1
Caroline Islands
1
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