Gjennomsnittlig GPS-koordinater for postnummer 57140: 20.283, 100.4
Notering byer:
>> Chiang Khong 57140, Chiang Rai, GPS-koordinater: 20.2833,100.4
Notering byer:
>> Chiang Khong 57140, Chiang Rai, GPS-koordinater: 20.2833,100.4