Region
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Turlock (Calif.)
1
Tzintzuntzan (Mexico)
1
United States
22
Usumacinta River Valley (Guatemala and Mexico)
1
Veracruz
1
Veracruz (México : Estado)
1
Veracruz (Veracruz-Llave, Mexico)
1
Veracruz-Llave (Mexico : State)
1
Yaqui River Valley (Mexico)
2
Yucatán (State)
1
Yucatán (State)
5
Zinacantán
1
Zinacantán (Mexico)
3