Gjennomsnittlig GPS-koordinater for postnummer 535-912: 34.67, 125.396

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Notering byer:
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Biri/곤촌리, GPS-koordinater: 34.66986,125.39599
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Gonchonri/마리, GPS-koordinater: 34.66992,125.39605
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Mari/비리, GPS-koordinater: 34.66981,125.39594
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Sari/사리, GPS-koordinater: 34.6698,125.39593
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Simri/심리, GPS-koordinater: 34.6698,125.39593
>> Heuksan-myeon/흑산면 535-912, Jeollanam-do/전남, Sinan-gun/신안군, Yeongsanri/영산리, GPS-koordinater: 34.66984,125.39597