Region
Canada
1
Colorado
1
Delaware
5
Douglas County
2
Douglas County (Wis.)
2
Europe
2
États-Unis
4
Finland
15
Finlande
3
Fitchburg
2
Fitchburg (Mass.)
2
Massachusetts
4
Minnesota
7
Piceance Creek Basin
1
Stockholm Metropolitan Area
1
Stockholm Metropolitan Area (Sweden)
1
Stockholm Region
1
Stockholm Region (Sweden)
1
Suède
1
Superior
2
Superior (Wis.)
2
Sweden
3
United States
42
Wisconsin
2
Worcester County
2
Worcester County (Mass.)
2
europe
1