Average GPS coordinates for Altamira Postcode location: 15.6, -92.917. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). Altamira on map:

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Listing cities & postcodes (2):
>> Coahuila De Zaragoza, 26094 Altamira, Piedras Negras, Piedras Negras, GPS coordinates: 15.6,-92.9167
>> Coahuila De Zaragoza, 27812 Altamira, San Pedro, San Pedro de las Colinas, GPS coordinates: 15.6,-92.9167