Region
Montana
150
Colorado
137
New Mexico
117
Wyoming
111
Arizona
97
California
96
Nevada
72
Oregon
70
United States
63
Washington (State)
63
Idaho
62
Utah
62
California Desert National Conservation Area (Calif.)
26
South Dakota
14
North Dakota
12
Alaska
7
Blaine County
4
British Columbia
4
Coconino County (Ariz.)
4
Elko County
4
Elko County (Nev.)
4
Garfield County
4
Garfield County (Utah)
4
Lincoln County
4
San Juan County
4
Texas
4
Yavapai County (Ariz.)
4
Yellowstone National Park
4
Benton County
3
Coconino County
3
Custer County
3
Custer County (Idaho)
3
Douglas County
3
Europe
3
Grand Staircase-Escalante National Monument (Utah)
3
Hidalgo County (N.M.)
3
High Plains Aquifer
3
Klickitat County (Wash.)
3
Maricopa County (Ariz.)
3
Puerto Rico
3
Rio Blanco County (Colo.)
3
Riverside County
3
Riverside County (Calif.)
3
San Juan County (Utah)
3
Valley County
3
Wisconsin
3
Yakima County
3
Yakima County (Wash.)
3
Yavapai County
3
Ada County
2
more ...