Keskmine GPS koordinaadid postiindeks 343-821: 36.877, 126.709

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videod linnad:
>> Songak-myeon/송악면 343-821, Chungcheongnam-do/충남, Dangjin-gun/당진군, Banggyeri/가교리, GPS koordinaadid: 36.87674,126.70916
>> Songak-myeon/송악면 343-821, Chungcheongnam-do/충남, Dangjin-gun/당진군, Bondangri/방계리, GPS koordinaadid: 36.87673,126.70915
>> Songak-myeon/송악면 343-821, Chungcheongnam-do/충남, Dangjin-gun/당진군, Cheonggeumri/본당리, GPS koordinaadid: 36.87681,126.70923
>> Songak-myeon/송악면 343-821, Chungcheongnam-do/충남, Dangjin-gun/당진군, Gagyori/청금리, GPS koordinaadid: 36.87683,126.70925