Prosečne GPS koordinate za poštanski broj 409-891: 37.158, 126.068

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Spisak gradova:
>> Deokjeok-myeon/덕적면 409-891, Incheon/인천, Ongjin-gun/옹진군, Baega/굴업, GPS koordinate: 37.15774,126.06754
>> Deokjeok-myeon/덕적면 409-891, Incheon/인천, Ongjin-gun/옹진군, Gureop/문갑도, GPS koordinate: 37.15777,126.06757
>> Deokjeok-myeon/덕적면 409-891, Incheon/인천, Ongjin-gun/옹진군, Jido/백아, GPS koordinate: 37.15778,126.06758
>> Deokjeok-myeon/덕적면 409-891, Incheon/인천, Ongjin-gun/옹진군, Mungapdo/울도, GPS koordinate: 37.15776,126.06756
>> Deokjeok-myeon/덕적면 409-891, Incheon/인천, Ongjin-gun/옹진군, Uldo/지도, GPS koordinate: 37.15778,126.06758