Gjennomsnittlig GPS-koordinater for postnummer 990-0818: 38.291, 140.331
Notering byer:
>> Okimachi 990-0818, Yamagataken, Yamagatashi, GPS-koordinater: 38.2911,140.3305
Notering byer:
>> Okimachi 990-0818, Yamagataken, Yamagatashi, GPS-koordinater: 38.2911,140.3305