Gjennomsnittlig GPS-koordinater for postnummer 87747: 24.408, -99.125

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Notering byer:
>> Barranco Azul 87747, Tamaulipas, San Carlos, GPS-koordinater: 24.4,-99.1
>> Nueva Union 87747, Tamaulipas, San Carlos, GPS-koordinater: 24.4167,-99.15