Gjennomsnittlig GPS-koordinater for postnummer 997-1121: 38.749, 139.765
Notering byer:
>> Ooyama(Sonota) 997-1121, Yamagataken, Tsuruokashi, GPS-koordinater: 38.7492,139.7651
Notering byer:
>> Ooyama(Sonota) 997-1121, Yamagataken, Tsuruokashi, GPS-koordinater: 38.7492,139.7651