Prosečne GPS koordinate za poštanski broj 638-990: 35.037, 128.327
Spisak gradova:
>> Maam-myeon/마암면 638-990, Gyeongsangnam-do/경남, Goseong-gun/고성군, GPS koordinate: 35.03712,128.32707
Spisak gradova:
>> Maam-myeon/마암면 638-990, Gyeongsangnam-do/경남, Goseong-gun/고성군, GPS koordinate: 35.03712,128.32707