Region
Alaska
Colorado
United States
3
Utah
3
Boulder District
1
California
1
Colorado River (Colo.-Mexico)
1
Connecticut
1
Cripple Creek
1
Cripple Creek-Victor Gold Mining District
1
Idaho
1
Iliamna Region
1
Illinois
1
Kansas
1
Missouri
1
Montana
1
Nevada
1
Oregon
1
Pennsylvania
1
Texas
1
Virginia
1
Wyoming
1