Gjennomsnittlig GPS-koordinater for postnummer 5100-138: 41.086, -7.852
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Lamego 5100-138,
Viseu, Ribeira Grande, Morais, GPS-koordinater: 41.0857,-7.8516
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Sé 5100-138,
Viseu, Ribeira Grande, Morais, GPS-koordinater: 41.0857,-7.8516