Gjennomsnittlig GPS-koordinater for postnummer 57251: 45.273, -96.91
Notering byer:
>> Marvin 57251, South Dakota, Grant, GPS-koordinater: 45.2727,-96.91
Notering byer:
>> Marvin 57251, South Dakota, Grant, GPS-koordinater: 45.2727,-96.91
