Prosečne GPS koordinate za poštanski broj 417-881: 37.798, 126.399

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Spisak gradova:
>> Yangsa-myeon/양사면 417-881, Incheon/인천, Ganghwa-gun/강화군, Bukseongri/교산리, GPS koordinate: 37.7984,126.39856
>> Yangsa-myeon/양사면 417-881, Incheon/인천, Ganghwa-gun/강화군, Gyosanri/북성리, GPS koordinate: 37.79836,126.39852
>> Yangsa-myeon/양사면 417-881, Incheon/인천, Ganghwa-gun/강화군, Inhwari/인화리, GPS koordinate: 37.79836,126.39852