Average GPS coordinates for 18 de Marzo Postcode location: 16.097, -92.992. (Notice: some coordinates are "GEO located" from street addresses. These numbers may be inaccurate. With this map you can check the coordinates.). 18 de Marzo on map:

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Listing cities & postcodes (2):
>> Coahuila De Zaragoza, 25760 18 de Marzo, Monclova, Monclova, GPS coordinates: 16.1569,-93.1167
>> Coahuila De Zaragoza, 27923 18 de Marzo, Francisco I Madero, GPS coordinates: 16.0361,-92.8667