Region
United States
30
États-Unis
18
Pennsylvania
14
Germany
7
Lehigh River Valley
7
Pennsylvanie
6
Bangladesh
5
Great Britain
5
Lehigh River Valley (Pa.)
5
France
4
Grande-Bretagne
4
Lehigh, Vallée du (Penns.)
4
New Jersey
4
Palmerton Zinc site (Pa.)
4
Allemagne
3
Bethlehem
3
New York (State)
3
Tanzania
3
Bethlehem (Pa.)
2
Costa Rica
2
Espagne
2
Kittatinny Mountain
2
Paris
2
Philadelphia
2
Spain
2
Africa
1
Afrique
1
Afrique du Sud
1
Amérique centrale
1
Angleterre
1
Barnegat Bay Region
1
Barnegat Bay Region (N.J.)
1
Bosnia and Herzegovina
1
Brooklyn (New York)
1
Caraïbes (Région)
1
Caribbean Area
1
Central America
1
China
1
Chine
1
Cluj-Napoca
1
Czech Republic
1
Dar es Salaam
1
Dar es-Salaam
1
Deutschland
1
Ecuador
1
England
1
Greece
1
Grèce
1
Israel
1
Israël
1
more ...