Gjennomsnittlig GPS-koordinater for postnummer 340-905: 36.678, 126.742

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Notering byer:
>> Sapgyo-eup/삽교읍 340-905, Chungcheongnam-do/충남, Yesan-gun/예산군, Bangari/방아리, GPS-koordinater: 36.67833,126.74156
>> Sapgyo-eup/삽교읍 340-905, Chungcheongnam-do/충남, Yesan-gun/예산군, Hyorimri/신가리, GPS-koordinater: 36.67825,126.74148
>> Sapgyo-eup/삽교읍 340-905, Chungcheongnam-do/충남, Yesan-gun/예산군, Singari/월산리, GPS-koordinater: 36.67826,126.74149
>> Sapgyo-eup/삽교읍 340-905, Chungcheongnam-do/충남, Yesan-gun/예산군, Wolsanri/효림리, GPS-koordinater: 36.67832,126.74155