Region
United States
518
Colorado
90
California
76
Oregon
72
Utah
71
Nevada
68
New Mexico
67
Alaska
60
West (U.S.)
44
Wyoming
39
Arizona
38
Idaho
34
Montana
30
Washington (State)
13
Clark County
10
Guam
8
Virginia
8
Florida
7
Oregon, Western
7
Texas
7
Arkansas
6
Chesapeake Bay Region (Md. and Va.)
6
Douglas County
6
Hawaii
6
Louisiana
6
North Dakota
6
Washington (D.C.)
6
Minnesota
5
San Juan County
5
Sandoval County
5
South Dakota
5
Admiralty Island National Monument Wilderness (Alaska)
4
Big Horn County
4
Chaffee County
4
Colville National Forest
4
Colville National Forest (Wash.)
4
Fort Carson (Colo.)
4
Tonto National Forest
4
Tonto National Forest (Ariz.)
4
Uncompahgre River Watershed
4
Utah Test and Training Range (Utah)
4
Washington County
4
White Sands Missile Range (N.M.)
4
California Desert National Conservation Area (Calif.)
3
Clear Creek County
3
Clear Creek County (Colo.)
3
Everglades National Park (Fla.)
3
Fairfax County
3
Gates of the Arctic National Park and Preserve (Alaska)
3
George Washington Memorial Parkway (Va. and Washington, D.C.)
3
more ...