Gjennomsnittlig GPS-koordinater for postnummer 350-893: 36.523, 126.712

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Notering byer:
>> Janggok-myeon/장곡면 350-893, Chungcheongnam-do/충남, Hongseong-gun/홍성군, Daehyeonri/대현리, GPS-koordinater: 36.52272,126.71196
>> Janggok-myeon/장곡면 350-893, Chungcheongnam-do/충남, Hongseong-gun/홍성군, Jijeongri/상송리, GPS-koordinater: 36.52266,126.7119
>> Janggok-myeon/장곡면 350-893, Chungcheongnam-do/충남, Hongseong-gun/홍성군, Okgyeri/옥계리, GPS-koordinater: 36.52265,126.71189
>> Janggok-myeon/장곡면 350-893, Chungcheongnam-do/충남, Hongseong-gun/홍성군, Sangsongri/지정리, GPS-koordinater: 36.52269,126.71193