Prosečne GPS koordinate za poštanski broj 300-0406: 36.022, 140.328
Spisak gradova:
>> Yamauchi 300-0406, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0217,140.3282
Spisak gradova:
>> Yamauchi 300-0406, Ibarakiken, Inashikigunmihomura, GPS koordinate: 36.0217,140.3282