Keskmine GPS koordinaadid postiindeks 330-921: 36.68, 127.056

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videod linnad:
>> Gwangdeok-myeon/광덕면 330-921, Chungcheongnam-do/충남, Dongnam-gu Cheonan-si/천안시 동남구, Bosanwonri/광덕리, GPS koordinaadid: 36.67965,127.05616
>> Gwangdeok-myeon/광덕면 330-921, Chungcheongnam-do/충남, Dongnam-gu Cheonan-si/천안시 동남구, Daedeokri/대덕리, GPS koordinaadid: 36.67963,127.05614
>> Gwangdeok-myeon/광덕면 330-921, Chungcheongnam-do/충남, Dongnam-gu Cheonan-si/천안시 동남구, Gwangdeokri/보산원리, GPS koordinaadid: 36.67956,127.05607