Region
United States
114
California
5
West (U.S.)
4
Florida
3
Springfield
3
Virginia
3
Massachusetts
2
Nevada
2
Tennessee
2
Washington (State)
2
Alaska
1
Arizona
1
Broward County
1
Broward County (Fla.)
1
California Highway 49 (Calif.)
1
California, Northern
1
Chesapeake Bay (Md. and Va.)
1
Colorado
1
El Camino Real de los Tejas National Historic Trail (Tex. and La.)
1
Everglades National Park
1
Germany
1
Greenbelt
1
Greene County
1
Hannover
1
Kaiparowits Plateau
1
Kennewick
1
Louisiana
1
Maryland
1
Medicine Bow National Forest (Wyo.)
1
Minnesota
1
Missouri
1
Nevada Test Site
1
New Bedford
1
New Jersey
1
Nicaragua
1
Rocky Mountains
1
San Francisco Bay Area
1
Santa Clara River Watershed
1
Santa Rita Experimental Range
1
Santa Rita Experimental Range (Ariz.)
1
Southwest, New
1
Tacoma
1
Tahoe, Lake, Watershed (Calif. and Nev.)
1
Utah
1
Virginia Key Beach Park (Miami, Fla.)
1
Yosemite National Park
1