Region
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Middle East
3
New Mexico
3
Russia (Federation)
3
Scotland
3
Switzerland
3
West (U.S.)
3
Aravaipa Canyon
2
Aravaipa Canyon (Ariz.)
2
Arctic regions
2
Arizona
2
Basel
2
Basel (Switzerland)
2
Belgium
2
Central America
2
Chile
2
Coclé (Province)
2
Colorado
2
Conte Site (Panama)
2
Cuba
2
English-speaking countries
2
Foreign countries
2
Georgia
2
Indonesia
2
Iran
2
Iraq
2
Korea
2
Middle West
2
Namibia
2
Oaxaca Valley
2
Oaxaca Valley (Mexico)
2
Orient
2
Panama
2
Pennsylvania
2
Philadelphia
2
Philadelphia (Pa.)
2
Puerto Rico
2
Québec (Province)
2
Safford Valley
2
Safford Valley (Ariz.)
2
San Francisco (Calif.)
2
San José Mogote (Mexico)
2
South Africa
2
Southwestern States
2
Soviet Union
2
Tampa (Fla.)
2
Vatican City
2
Via Latina Catacomb (Rome, Italy)
2
Ybor City (Tampa, Fla.)
2
Acoma
1
Africa, Central
1
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