Gjennomsnittlig GPS-koordinater for postnummer 990-0408: 38.342, 140.256
Notering byer:
>> Oka 990-0408, Yamagataken, Higashimurayamagunnakayamamachi, GPS-koordinater: 38.3416,140.2557
Notering byer:
>> Oka 990-0408, Yamagataken, Higashimurayamagunnakayamamachi, GPS-koordinater: 38.3416,140.2557