Region
Colorado
54
United States
23
Arizona
12
Wyoming
12
Montana
10
Park County
7
Utah
7
California
6
Gunnison County
5
Kansas
5
Nevada
5
New Mexico
5
Colorado Plateau
4
Sangre de Cristo Mountains (Colo. and N.M.)
4
Custer County
3
Pennsylvania
3
Saguache County
3
Uncompahgre Plateau
3
Canada
2
Carbon County
2
Chaffee County
2
Cochise County
2
England
2
Fremont County
2
Hidalgo County
2
Idaho
2
Italy
2
Japan
2
Mesa County
2
Montrose County
2
New York (State)
2
Oklahoma
2
Pima County
2
Rome
2
San Juan County
2
San Juan Mountains (Colo. and N.M.)
2
South Dakota
2
Teller County
2
Texas
2
Uncompahgre Plateau (Colo.)
2
Albany County
1
America
1
Anaconda Range
1
Animas Mining District (Colo.)
1
Arctic National Wildlife Refuge (Alaska)
1
Aspen
1
Atlantic Coast (Canada)
1
Atlantic Coast (U.S.)
1
Beaverhead County
1
Bighorn Basin (Mont. and Wyo.)
1
more ...