Prosečne GPS koordinate za poštanski broj 255-840: 38.288, 128.131
Spisak gradova:
>> Haean-myeon/해안면 255-840, Gangwon-do/강원, Yanggu-gun/양구군, GPS koordinate: 38.28846,128.13115
Spisak gradova:
>> Haean-myeon/해안면 255-840, Gangwon-do/강원, Yanggu-gun/양구군, GPS koordinate: 38.28846,128.13115