Prosečne GPS koordinate za poštanski broj 78650: 48.847, 1.855

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Spisak gradova:
>> Beynes 78650, Île-de-France, Yvelines, Arrondissement de Rambouillet, GPS koordinate: 48.8563,1.8726
>> Saulx-Marchais 78650, Île-de-France, Yvelines, Arrondissement de Rambouillet, GPS koordinate: 48.838,1.8376