Region
America
2
Canary Islands
2
Delaware
4
Delaware River Valley
2
Delaware River Valley (N.Y.-Del. and N.J.)
2
Delaware, Vallée de la (N.Y.-Del. et N.J.)
1
Denmark
1
États-Unis
2
Finland
1
Iceland
1
Maryland
2
New Jersey
2
New Sweden
4
Norway
1
Pennsylvania
2
Pennsylvanie
1
Soviet Union
1
Spitzbergen
1
Suède
4
Sweden
19
United States
5
Uppsala (Sweden)
1
Western Hemisphere
2