Gjennomsnittlig GPS-koordinater for postnummer 512-31: 50.567, 15.5
Notering byer:
>> Roztoky u Jilemnice 512-31, Semily, GPS-koordinater: 50.5667,15.5
Notering byer:
>> Roztoky u Jilemnice 512-31, Semily, GPS-koordinater: 50.5667,15.5