Prosečne GPS koordinate za poštanski broj 417-921: 37.787, 126.301

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Spisak gradova:
>> Gyodong-myeon/교동면 417-921, Incheon/인천, Ganghwa-gun/강화군, Bongsori/고구리, GPS koordinate: 37.78693,126.30107
>> Gyodong-myeon/교동면 417-921, Incheon/인천, Ganghwa-gun/강화군, Eupnaeri/봉소리, GPS koordinate: 37.78684,126.30098
>> Gyodong-myeon/교동면 417-921, Incheon/인천, Ganghwa-gun/강화군, Goguri/상용리, GPS koordinate: 37.78688,126.30102
>> Gyodong-myeon/교동면 417-921, Incheon/인천, Ganghwa-gun/강화군, Sangyongri/읍내리, GPS koordinate: 37.7869,126.30104