Prosečne GPS koordinate za poštanski broj 641-920: 35.346, 128.705
Spisak gradova:
>> Daesan-myeon/대산면 641-920, Gyeongsangnam-do/경남, Changwon-si/창원시, GPS koordinate: 35.34552,128.70538
Spisak gradova:
>> Daesan-myeon/대산면 641-920, Gyeongsangnam-do/경남, Changwon-si/창원시, GPS koordinate: 35.34552,128.70538