Prosečne GPS koordinate za poštanski broj 999-2177: 37.98, 140.12
Spisak gradova:
>> Osonoduka 999-2177, Yamagataken, Higashiokitamaguntakahatamachi, GPS koordinate: 37.9804,140.1196
Spisak gradova:
>> Osonoduka 999-2177, Yamagataken, Higashiokitamaguntakahatamachi, GPS koordinate: 37.9804,140.1196