Prosečne GPS koordinate za poštanski broj 570-853: 36.113, 126.919

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Spisak gradova:
>> Seongdang-myeon/성당면 570-853, Jeollabuk-do/전북, Iksan-si/익산시, Dudongri/두동리, GPS koordinate: 36.11289,126.91918
>> Seongdang-myeon/성당면 570-853, Jeollabuk-do/전북, Iksan-si/익산시, Seongdangri/성당리, GPS koordinate: 36.11284,126.91913