Prosečne GPS koordinate za poštanski broj 820: 22.802, 120.286
Spisak gradova:
>> Gangshan Township/岡山鎮 820, Kaohsiung County/高雄縣, GPS koordinate: 22.80165, 120.28588
Spisak gradova:
>> Gangshan Township/岡山鎮 820, Kaohsiung County/高雄縣, GPS koordinate: 22.80165, 120.28588