Region
Colorado
10
New Mexico
6
Alaska
5
Utah
5
Arizona
4
Larimer County
3
Chile
2
Florida
2
Merry Widow Mine (N.M.)
2
Nevada
2
San Juan County
2
San Miguel County
2
West (U.S.)
2
Aisén (Province)
1
California
1
Catron County
1
Colfax County
1
Georgia
1
Gila County
1
Jakolof Bay region
1
Jefferson County
1
Lyon County
1
Marysvale
1
Mauch Chunk Region
1
Mesa County
1
Oregon
1
Pennsylvania
1
South Carolina
1
Texas
1
Wyoming
1