Region
United States
7
Mexico
5
Greece
4
Illinois
4
North America
4
Egypt
3
India
3
Ontario
3
Papua New Guinea
3
Peru
3
Alaska
2
Amérique du Nord
2
Andes Region
2
Arkansas
2
Crete
2
Knossos (Extinct city)
2
Massachusetts
2
Murélaga
2
New York
2
New York (State)
2
Southwest, New
2
Spain
2
Texas
2
Albemarle County
1
Aleuten (Volk)
1
Aleutian Islands
1
Aleutian Islands (Alaska)
1
Aléoutiennes
1
American Bottom
1
Amherst County
1
Arica (Chile : Department)
1
Arica (Department)
1
Arroyo Hondo Site (N.M.)
1
Athens
1
Australia
1
Ayalán Cemetery Site (Ecuador)
1
Benin
1
Bering Sinkhole Site (Tex.)
1
Blackstone River Valley (Mass. and R.I.)
1
Brazil
1
Brevard County
1
Brevard County (Fla.)
1
Cape Cod National Seashore
1
Cape Cod National Seashore (Mass.)
1
Casas Grandes Site (Mexico)
1
Cass County
1
Cass County (Tex.)
1
Central America
1
Chichén Itzá Site (Mexico)
1
Chihuahua (Mexico : State)
1
more ...