Průměrné GPS souřadnice pro psČ 355-848: 36.33, 126.285

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Seznam měst:
>> Ocheon-myeon/오천면 355-848, Chungcheongnam-do/충남, Boryeong-si/보령시, Hyojado ri 2 heoyukdo/효자도2리 월도, GPS souřadnice: 36.33047,126.28482
>> Ocheon-myeon/오천면 355-848, Chungcheongnam-do/충남, Boryeong-si/보령시, Hyojado ri 2 woldo/효자도2리 육도, GPS souřadnice: 36.33048,126.28483
>> Ocheon-myeon/오천면 355-848, Chungcheongnam-do/충남, Boryeong-si/보령시, Hyojado ri 2 yukdo/효자도2리 허육도, GPS souřadnice: 36.33041,126.28476