Gjennomsnittlig GPS-koordinater for postnummer 3430-261: 40.433, -8

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Notering byer:
>> Albergaria 3430-261, Viseu, Santa Cruz das Flores, Bagueixe, GPS-koordinater: 40.4333,-8
>> Carregal do Sal 3430-261, Viseu, Santa Cruz das Flores, Constantim, GPS-koordinater: 40.4333,-8