Prosečne GPS koordinate za poštanski broj 689-840: 35.662, 129.217
Spisak gradova:
>> Dudong-myeon/두동면 689-840, Ulsan/울산, Ulju-gun/울주군, GPS koordinate: 35.66195,129.21672
Spisak gradova:
>> Dudong-myeon/두동면 689-840, Ulsan/울산, Ulju-gun/울주군, GPS koordinate: 35.66195,129.21672