Prosečne GPS koordinate za poštanski broj 87831: 24.27, -99.331

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Spisak gradova:
>> El Progreso 87831, Tamaulipas, Hidalgo, GPS koordinate: 24.4058,-99.4086
>> Oyama 87831, Tamaulipas, Hidalgo, GPS koordinate: 24.1333,-99.2528