Gjennomsnittlig GPS-koordinater for postnummer 71821: 16.244, -97.499
Notering byer:
>> Peñas Negras 71821, Oaxaca, Villa de Tututepec de Melchor Ocampo, GPS-koordinater: 16.2436,-97.4989
Notering byer:
>> Peñas Negras 71821, Oaxaca, Villa de Tututepec de Melchor Ocampo, GPS-koordinater: 16.2436,-97.4989