Prosečne GPS koordinate za poštanski broj 03837: 43.447, -71.3
Spisak gradova:
>> Gilmanton Iron Works 03837, New Hampshire, Belknap, GPS koordinate: 43.4466,-71.2995
Spisak gradova:
>> Gilmanton Iron Works 03837, New Hampshire, Belknap, GPS koordinate: 43.4466,-71.2995