Prosečne GPS koordinate za poštanski broj 78881: 23.017, -100.333
Spisak gradova:
>> San Carlos 78881, San Luis Potosi, Guadalcazar, GPS koordinate: 23.0167,-100.3333
Spisak gradova:
>> San Carlos 78881, San Luis Potosi, Guadalcazar, GPS koordinate: 23.0167,-100.3333