Region
Colorado
577
Alaska
564
United States
373
Montana
278
Nevada
272
California
269
New Mexico
246
Utah
246
Arizona
231
Idaho
211
Wyoming
191
Oregon
160
Washington (State)
83
Afghanistan
51
Tennessee
48
Australia
46
Pennsylvania
45
Virginia
44
North Carolina
41
Illinois
39
Black Hills (S.D. and Wyo.)
38
South Dakota
37
Mexico
35
West (U.S.)
35
Texas
34
Missouri
31
Canada
23
Lincoln County
23
Brazil
21
Boulder County
20
Florida
20
Kansas
20
Montrose County
20
New York (State)
20
San Miguel County
20
South Carolina
20
Georgia
19
Kentucky
19
Grant County
18
Lake County
18
North Dakota
18
Arkansas
17
Clark County
17
Lemhi County
17
San Bernardino County
17
British Columbia
16
Mesa County
16
Michigan
16
West Virginia
16
Humboldt County
15
more ...