Region
Alaska
176
Nevada
88
Colorado
87
United States
67
Arizona
57
Idaho
55
Montana
43
Utah
38
New Mexico
22
Brazil
17
California
15
Humboldt River Watershed
12
Washington (State)
12
Clear Creek County
11
Minas Gerais
11
Lander County
9
Oregon
9
West (U.S.)
9
Canada
8
Custer County
8
Elko County
8
Minnesota
8
Minas Gerais (Brazil)
7
Wyoming
7
Front Range (Colo. and Wyo.)
6
Grant County
6
Middle West
6
New York (State)
6
North America
6
San Juan Mountains (Colo. and N.M.)
6
Shoshone County
6
Mineral County
5
Missouri
5
North Carolina
5
San Juan County
5
Virginia
5
Afghanistan
4
Alaska Range
4
Eagle County
4
Grand County
4
Granite County
4
Humboldt County
4
Leadville
4
Lincoln County
4
Northwest, Pacific
4
Pend Oreille County
4
Peru
4
Pinal County
4
South Carolina
4
South Dakota
4
more ...