Prosečne GPS koordinate za poštanski broj 9170: 53.316, 5.884
Spisak gradova:
>> Blija (Blije) 9170, Provincie Friesland, GPS koordinate: 53.3161,5.8838
Spisak gradova:
>> Blija (Blije) 9170, Provincie Friesland, GPS koordinate: 53.3161,5.8838