Prosečne GPS koordinate za poštanski broj 417-923: 37.806, 126.247

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Spisak gradova:
>> Gyodong-myeon/교동면 417-923, Incheon/인천, Ganghwa-gun/강화군, Insari/무학리, GPS koordinate: 37.8062,126.24684
>> Gyodong-myeon/교동면 417-923, Incheon/인천, Ganghwa-gun/강화군, Jiseokri/삼선리, GPS koordinate: 37.8062,126.24684
>> Gyodong-myeon/교동면 417-923, Incheon/인천, Ganghwa-gun/강화군, Muhakri/인사리, GPS koordinate: 37.80613,126.24677
>> Gyodong-myeon/교동면 417-923, Incheon/인천, Ganghwa-gun/강화군, Samseonri/지석리, GPS koordinate: 37.80619,126.24683