Gjennomsnittlig GPS-koordinater for postnummer 999-4111: 38.592, 140.375
Notering byer:
>> Ooishida 999-4111, Yamagataken, Kitamurayamagun'Ooishidamachi, GPS-koordinater: 38.5916,140.3751
Notering byer:
>> Ooishida 999-4111, Yamagataken, Kitamurayamagun'Ooishidamachi, GPS-koordinater: 38.5916,140.3751