Gjennomsnittlig GPS-koordinater for postnummer 28554: 0.537, 100.604
Notering byer:
>> Ujung Batu 28554, Riau, Rokan Hulu, GPS-koordinater: 0.53719,100.60397
Notering byer:
>> Ujung Batu 28554, Riau, Rokan Hulu, GPS-koordinater: 0.53719,100.60397