Region
New Hampshire
10
California
8
Nevada
8
Vermont
8
Alaska
4
Massachusetts
4
Windsor County
4
Afghanistan
3
Clark County
3
Grafton County
3
Rutland County
3
United States
3
Alameda County
2
Caledonia County
2
Essex County
2
Michigan
2
Montana
2
Nevada Test Site
2
Prairie County
2
San Bernardino County
2
Virginia
2
Windham County
2
Wisconsin
2
Addison County
1
Alamosa County
1
Alaska Peninsula
1
Arctic National Wildlife Refuge
1
Ashland Region
1
Asia
1
Bennington County
1
Berrien County
1
Borneo Region
1
Box Elder County
1
California, Southern
1
Canada
1
Colorado
1
Conejos County
1
Connecticut
1
Contra Costa County
1
Death Valley Region (Calif. and Nev.)
1
East Asia
1
Erie, Lake, Region
1
Eureka County
1
Frederick County
1
Funeral Mountains Wilderness
1
Hubbard Brook Experimental Forest
1
Hubbard Brook Experimental Forest (N.H.)
1
Ironwood Region
1
Jackson County
1
Josephine County
1
more ...