Region
Montana
31
California
26
New Mexico
26
Wyoming
23
Washington (State)
21
Oregon
20
Arizona
16
Colorado
14
Nevada
13
United States
11
Utah
11
North Dakota
10
Idaho
8
British Columbia
4
California Desert National Conservation Area (Calif.)
2
South Dakota
2
Craters of the Moon National Monument (Idaho)
1
Craters of the Moon National Preserve (Idaho)
1
Gallup (N.M.)
1
Gallup Region
1
McKinley County
1
McKinley County (N.M.)
1