Average GPS coordinates for Piedra Blanca Postcode location: 23.583, -100.65. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Piedra Blanca on map:

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Listing cities & postcodes (1):
>> San Luis Potosi, 78814 Piedra Blanca, Matehuala, GPS coordinates: 23.5833,-100.65