Region
United States
138
Nevada
17
New Mexico
11
Utah
11
California
10
West (U.S.)
9
Arizona
6
Chesapeake Bay Region (Md. and Va.)
6
Idaho
6
Montana
6
Alaska
5
Hawaii
5
Minnesota
4
Utah Test and Training Range (Utah)
4
White Sands Missile Range (N.M.)
4
Limestone Hills Training Area (Mont.)
3
Texas
3
Big Horn County
2
Cibola National Forest (N.M.)
2
Clark County
2
Florida
2
Fort Bliss (Tex.)
2
Grand Rapids
2
Lincoln County
2
Louisiana
2
Mexican-American Border Region
2
Pacific Area
2
Park County
2
Pershing County
2
Sandoval County
2
Virginia
2
Walnut Canyon National Monument (Ariz.)
2
Walnut Canyon National Monument Region
2
White Pine County
2
Wyoming
2
Arkansas
1
Big Sur Coast National Scenic Area (Calif.)
1
California Desert National Conservation Area (Calif.)
1
California, Northern
1
California, Southern
1
Colorado
1
Craig
1
Eddy County
1
Fairfax County
1
George Washington Memorial Parkway (Va. and Washington, D.C.)
1
Headwaters Forest Wilderness (Calif.)
1
Hood, Mount, Region
1
Maryland
1
Mendocino National Forest (Calif.)
1
Mesquite
1
more ...