Region
United States
1,070
États-Unis
310
Oregon
145
Utah
142
Wyoming
126
West (U.S.)
107
Arizona
105
New Mexico
102
California
101
Nevada
76
Colorado
73
Alaska
69
Idaho
68
Montana
54
West United States
35
Oregon, Western
30
North Dakota
25
Californie
24
Columbia River Watershed
19
Northwest, Pacific
18
Nouveau-Mexique
18
South Dakota
18
Arctic National Wildlife Refuge (Alaska)
15
Clark County
14
Florida
14
Great Basin
14
USA
13
Grand Staircase-Escalante National Monument (Utah)
12
Jackson County
12
Billings County
11
Billings County (N.D.)
11
Campbell County
11
Grand Staircase-Escalante National Monument
11
Owyhee County
11
Arctic National Wildlife Refuge
10
Black Ridge Canyons Wilderness (Colo. and Utah)
10
Interior Alaska
10
Mojave Desert
10
Mojave National Preserve (Calif.)
10
Texas
10
Catron County
9
Seward Peninsula
9
Sonoran Desert National Monument
9
Tonto National Forest
9
Tonto National Forest (Ariz.)
9
Washington (State)
9
California, Southern
8
Cibola National Forest
8
Cibola National Forest (N.M.)
8
Douglas County
8
more ...